The thing with a blend like that is you'll still need to pin eod for stable blood plasma levels. The tren ace in the blend will create instability if you don't pin Ed/eod. So it's better IMO to use a single ester. If you don't want to pin as often stick with tren e. I prefer short esters as it gives you complete control over blood levels. Much less erratic. And yes it's recommended to use less test with tren. There is a hot debate about tren and test fighting for the same receptors. Tren has a much higher binding affinity to the AR than test so it wins the fight for receptors every time. The more test you use with tren the more side effects you'll see. With tren beating test to the receptor , all that test has nothing to do but float around freely and convert to estrogen. Most ppl report much worse side effects on high test w/ tren. I prefer 100mg Ed tren a & 50mg Ed test p. but this is just one mans opinion. What are your stats and cycle history? I should have asked first but your question was generalized so id rather you gain the knowledge.

well if its just a general question and not cycle advice, then tren ace is preferred as if you get side effects or something goes wrong you can stop usage and its out of your system quickly, test mixes are fine like sust etc aslong as you know the esters attached and how long they bind for etc and as for dosing together it i a contraversial matter, generally speaking yes ppl run test lower than tren for diffrnt reasons some to keep sides lower and some because of receptor binding affinity, tren is stronger than test thats all ill say.