EXACTLY!! and if you cannot see your lead, you cannot see your horizon. If in straight and level flight your lead is at your 9-10 O'clock at the same altitude and you both bank 30 degrees and both maintain altitude (meaning you cannot climb to stay on your lead's roll axis) you will not be able to see your lead unless you have an eyebrow window. Tactical airdrop formations in an airlifter are very different than formations in fighters.
Not exactly Ken, you've completely missed the point. I'm talking close formation here, just like in the video. In all the large aircraft formation I've done I stay in formation, so when my leader rolls left or right I climb or descend slightly so that I can maintain IN FORMATION. Simples!