I'm not an expert on anatomy but it's hard for me to accept that the gold standard for upper traps, vertical shrugs, everyone has been wrong. I like Paul and am not a fan of kasaam but kasaam seems like the nerdy science guy, and he says that vertical shrugs do it it. Does anyone other than Paul share his view that heavy shrugs don't build big upper traps? If he's right I will switch. Do you happen to have any videos of the way Paul says other than what he posted? I tried his exact exercise shrugging horizontal on the same machine I didn't feel anything.