awesome man i'll be checking this.
like yourself i already have a set foundation, and also not specifically looking for muscle "gainz". more so to aid in recovery/healing(tendonitis) and sleep. should add that i have no prior experience with any form of hgh.
i just started mk 4 days ago, from a canadian chem research company. looked for 2 weeks to try and find any negative reviews, but found none so im hoping its legit,it came as a pill form 15mg each. I've gotten great results with what many consider low doses of AAs, so i'm going to stick to 15mg a night for a while, hoping with a healthy diet i can get the most out of the mk.
so far haven't noticed any water retention although i did increase my water intake quite a bit. something is going on with my digestive system though lol (making bubbling noises and such) and i feel like im digesting much faster. Feeling of hunger much more pronounced, and don't really get the feeling of being full after my meals. a little more energy at the gym, but could be just from better sleep, had a crazy dream the second night. i've had serious neck issues from mma training so im hoping it doesn't mess with that!
side question: are you taking a somatostatin inhibitor? i've read conflicting reports wether of not they work alongside mk. most common i've seen are melatonin and huperzine A. I have melatonin on hand, so i've been taking it anyways since i started the mk. also interested in the huperzine A as it also has a lot of other benifits.