Steroids give a different look to the muscles generally, a more three dimensional look, the muscle quality is different. There are also muscle groups that are hard to build naturally that respond well to steroids, traps, shoulders and lats in particular.
It's more about the water retention and rapid weight gain. Frank's face was pretty puffy looking which is one of the first signs of an athlete taking something like testosterone, deca or EQ.
You guys are thinking about it way too much. Franks just a fat dude. He gained an extra 20lbs or whatever. Didnt make a blind bit of difference and he didnt look stronger to me. Additionally there is no way by just looking at someone to claim without any doubt that they are on gear. The whole notion that that is possible is ridiculous. Barnetts a tub of lard. He's been busted for gear many times. Wes Sims is the same as was Sylvia.
No, this isn't a fail safe. But water rentention is one of the 1st signs you learn to read as a juiceologist.
Mir looked so confident against Carwin, maybe too confident. He has a lot of experience and that can be a good or a bad thing. He just doesn't look like he has any nerves and is too casual. A small amount of nervousness is good for any athlete.