aromasin in my opinion but there is really no set in stone protocol given we are all different and have different need as to estro and shbg. You simply have to lear n the signs up and down and play with it over time using bloods as the roadmap. Could quater dose it whole trip eod and may or may not be your sweet spot or open with it 12.5 eod for two weeks and close the same having it on hand and ready to use inbetween, bounce it in 10 days out of 30, 2 on 2 off, one week out of every 3...just have to know yourself. I bounce knowing the signs but still miss it on occassion. If totally lost then maybe quarter dose eod the whole ride and watch for signs of low estro being joint issues, lack of wood quality, feeling shitty or down , out of energy etc. If I had my perfect world you would check it in bloods every 3 weeks for a few cycles to find you way, thats not likely so one here and there, ask questions along the way, watch for water uptake etc etc...low salt. Drink plenty O water the whole ride as well.