Letro gets alot of heat for being hard to regulate, and thats true, but i want to share my current experience with it.
The last few years ive had sensitive nipples during every blast. Even with mast and nolva. I chalked it up to just my chemistry.
These passed few months i was getting bad sensitivity along with puffyness. I was doing tons of nolva, aromasin, and mast to mitigate it but it would never totally go away.
Last week i tried 2.5mg of letro every other day. On day 1 i saw improvement. A week later (today) and my puffiness is gone and i have zero sensitivity. Also feeling less bloated. Im really happy with the results. HOWEVER, it does hurt libido badly, and im pretty miserable mentally. I really need to push thru workouts. I will drop it down to 1.25 every other day next week, and then .625 every other day after that until i feel that im cured. Its about a 30 hour half life so every other day should suffice.