Decide on your goals, cutting or bulk, and then research best Sarm compounds to use. Plenty of logs as well as information out there. I don't believe in running Sarms solo, stacked I feel they are way more beneficial, some will argue they are competing for the same androgen receptors, I disagree, you just have to use the ones that pair well with each other. I ran a 5 sarm stack this summer (KONG) with no issues. Rad140 because it was such a low dose, 6 mg, it actually acted as the test base for the stack which kept libido strong, except the lethargy started to creep in Week 7, and then **** got real. I like LGD for the once a day dosing, long shelf life, Ostarine was good for me as well at 25mg a day. Caradine for endurance was amazing, by week 5, I was banging out rep after rep, could have gone on forever. Just never got tired. My endurance on that was just plain retarded. Currently running LGD, MK677, YK11 stack, gaining strength, recovery is good, increased aggression from the YK11, looking to put on 6-8lbs, epi-andro is my test base, so far so good. In terms of S23, we got a dude on here running it now with good results on a cut, so definitely figure out what works best for you and design your cycle protocol accordingly, some will respond better than others to Sarms, proper cycle support is a must.