Not that, but to maintain side delt muscle mass on a low bf is very difficult for naturals..
Nah, it's just the way he's hitting the pose. Even when I was completely natural (only previous inject was a flu shot lol) I could push my delts out all weird like that. That's actually a huge reason why I avoid pinning delts. Even if I pin half a ml it looks like I have 5 deltoid heads or something so I never put anything in there anymore.
Martin is a smart fucking guy. I respect him a lot and have made IF work well for myself. I think his stats are a bit suspect because there's no way he can be that heavy and lean completely natural. I think he's probably tried a few orals and maybe some injects too. Probably did it very calculated and meticulously . But I don't think he stays on all the time. Even a few cycles changes your natural base. Your numbers won't climb up higher than what gh15 laid out, but what you LOOK like is way different.
Either way, Martin looks great and he doesn't have to kill himself dieting like a fool. I've got a few friends (natty and juiced) doing IF and they have great results as well.