I see where you're coming from. Your concerns about loss of libido due to low estrogen is actually not that common with 6-bromo based AIs. Things with ATD can often have that affect, but unless you already have low estro- levels, I'd say you have absolutely nothing to fear. The WBM in MFX is dosed to keep estrogen increases at bay when the free test levels rise. It's enough to ward off any potential gyno flare-ups, but again, if you don't have it, you don't have to worry about it. I've recommend MassFX for many who have low test levels, and folks of all ages. IMHO, it can benefit literally anyone over 18 and 6' above ground (as long as they have nutz, or course :nutkick
. It's up to you whether or not you want to try it, but I do honestly believe it's still a very viable option for you. Just my 2 cents for what they're worth. You still have my wellwishes in a great cycle! :cheers: