The shredded gluts thing is perplexing... All the top late 80's guys had amazing detail and seperation, yet they all lacked a shredded ass
Now you have guys lacking details everywhere, next to no detail yet they sport shredded glutes?
I'm pretty positive it's the gh. Somehow it gets your ass lean.
One thing showing how the volume of steroid injections has gone up dramatically is also the ass

80's and 90's you never saw the huge upper glutes. Now EVERY single top pro has a huge bump on the upper glutes. It's so huge you can see it from the front

For the few who don't know wtf I'm talking about, see this pic of roelly from the Olympia


Even with irritating, poorly made gear it takes some volume (as in cc's and ml's) to achieve an ass like this

Never saw this in the past.