I'm not sure SHBG, its been so long. I stopped going to the Low T center and switched to my own homemade test and nandrolone when I got back into bodybuilding. I've been Bodybuilding, TRT, Bodybuilding, etc since 2008. And TRT from many different docs, last guy was telemedicine and cheap and he didn't follow up just sent me 6 months worth lol. That's when I quit everything Jan 2020 and lost all my size.
I just had Defy pull extensive labs, paid $400 so I hope their good! It was $300 + adding on DHT or Prolactin, etc Drives it up. Haven't gotten the results yet it's been 5 days.
To answer your other question, only MK677. I was on 25 mg Ibutamorin daily for 3 yrs without a break. That's only think I used when the doc at Low T Center was dialing in my TRT. I told him about it and he thought it was cool, tried to help me with testing IGF1 and turned out super elevated so was nice to know it worked.
I just started back on Ibutamorin and Ipamorelin. Waiting for a script / consultation to get more Test/Nandrolone and hopefully more