I don't think it much matters with Magnum whether or not you get stapled, except on exceptionally violent air seats (ie 1-3) when it is less painfull to be tied in tightly. Personally i like to ride 1-2 loosey-goosey with plenty of space on the bar and belt, but it's still the best ride even stapled.
Okay, Dave... maybe "padding" was a bad choice of word.
How about... seating area volume limiting devices?
I can't comment on this subject. :) But the Magnum crew has been rocking hardcore the past week.
The "padding" on CCMR feels like a bunch of bricks with a black cover over them.