+ 1 Cruise vs blast lab markers
Hey all, curious on how others decide their cruise test dose compared to their blast dose. Do you settle on your trt dose by going up until your E2 is at a good level? There used to be so much craze about knocking down estrogen but lately I’ve been seeing people running high estrogen as long as they don’t have sides and BP/ health markers are all good.
I ask because I run 180mg split in 2 injections per week and run 1346 total 304 free and 75 E2. From my understanding the ratio is pretty good there and I have no sides at all and feel fine but have questioned myself about lowering it just to see a lower estrogen number.
I eventually want to have a run at my first 12 week test only blast and would love some input. Do you think I’m a high responder maybe I’m close to the blast levels now and should cruise a lot lower. If I ever want to hit 4-500mg a week it seems AI may be non negotiable for me or maybe I’m over thinking it?
38yo male 181# 5’10” 15%ish(guessing) BF
Hopefully this is a good first question post, appreciate the info here and any future replies!
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I try to keep my e2 in normal range while on trt which for me ends up being 120mg/wk and puts my total test at like 700ish measured at trough.
That said I can and have run higher than that without e2 sides. Most recently was on 200mg/wk for the first 8 weeks of a cut before adding mast and my e2 was like 80 but felt fine.
I think honestly going off symptoms makes the most sense. Pick a dose where you feel good but don’t need an AI to control e2 and you’re good to go. I also personally don’t feel the need to push the dose during trt phases as that’s usually when I’m trying to clean up health markers in between blasts so that takes priority over pushing test levels.
That makes a lot of sense, thanks for your reply. I am going to find the sweet spot for cruising a tad lower than what I’m at now hopefully the next dose I pick ends up working well.
I always suggest cruising along in the 7-800 range. Enough to keep us old guys feeling young, but low enough so when you do blast you really feel it.
Have you had a full blood workup, or just the hormones?
Yes I do very thorough panels with just about everything included
TRT LABS — 08/13/2026
HORMONES
CBC
CMP
LIPIDS
KIDNEY
IRON
THYROID
METABOLIC / OTHER
Looks pretty damn good bro!! Youll just have to keep an eye on that E2. If you dont want to add another compound, AI's arent the end of the world. But I would never argue against the trusty test/mast stack
Thanks Ken! You a fan of the 1:1 with mast?
Last time I ran it ( afew years ago now), it was 250 test 200 mast, but mainly because I was lazy to figure out ratios. I am a high aromatizer, and that kept my e2 in a manageable range. There are many more knowledgeable people here than I when it comes to mast, might give you better insight on where to start on ratio
I personally like to keep my e2 around 3-5% of my total test level, for me it's perfect for libido and not much water weight. At 180mg im around 1250 and 60ish e2. I dont get nipple sides until im in the 120-150 range, water weight comes a bit before that.
I started using mast to overcome sides from e2 + I really love the way mast makes me feel in general. You could always pin test more frequently regardless of e or cyp, 3x per week vs 2x. Ai are toxic aswell so really dont want to touch them if i can do something else that actually has a benefit to taking vs just lowering my e2.
I personally wouldn't add another compound tho until you've ran a higher test blast so you know exactly what is making you feel whatever way and how your bloods are. Add other compounds in the future so you dont end up playing a guessing game.
@Mback76 What do you like about the mast feel? I'm a high converter, and I recently added 100mg of Primo to my cruise — it's gotten my E2 down from the 90s to the 20s. Honestly, my libido is a bit low, but I'm also just coming off a 500mg blast. I can't say I notice the Primo outside of my bloodwork (not that I was expecting to).
@DJP2188 I'm a high converter myself, and my E2 got up to the 120s on 500mg of test recently. I definitely felt bloated and puffy. I won't run test that high again without either Primo or Mast. I'm currently running 200mg test and 100mg Primo — I did this to see how significantly Primo helps with my E2. Based on this dosing, I'll likely run 500mg test and 200mg Primo when it's time to bump doses. After a month, I'll test again and see how I'm sitting.
There's a ton of anti-AI propaganda going around lately... I'm far too dumb to have a dog in that fight. That said, I'd rather add another well-tolerated anabolic compound than something non-anabolic to manage E2. Monitor your bloods closely and make adjustments!
Mast kinda gives a bit more energy / drive and a bit of confidence. Nothing too crazy but it was noticeable on 200 test + 400 mast. Also that ratio worked fine for me but I’m a high aromatizer so YMMV.
Primo feels like nothing which is great in its own right and honestly I prefer not feeling “on” most of the time.
Yeah man I am really trying to avoid any of those AIs. I actually already have mast as that was my thought if I wanted to run test higher and not worry about E2 sides but all recommendations are test only first which i totally get the point of that route but I can already tell I am going to have high E2 alone. I’m torn.
Well mast isnt going to lower your e2 like primo, it competes with e2 at the receptor level. Gives a huge spike in my libido and super strong hardons. I mean it is a DHT derived aas. It gets rid of alot of water retention and tightens my muscles up. You're not really going to gain any mass worth noting from it tho. It doesn't really hit any of my bloods in too negative of a way either.
So when I pair it with a 19nor it really makes a huge difference with bloat on top of keeping my mood solid and I tend to be very level headed on mast.
Thank you. Yes perfect, that was my exact plan. Figure out my cruise test first even though I have been on trt for a while and always on top of labs I think I should be a tad lower. I think I’m going to go to 160mg a week into 3 injections. Retest in 8 weeks and if I’m happy with that my first run would be test only. Once I find what works masteron actually was 1st on my list to play with down the road.