I've had these bodies so far -
Team Durango DESC210
Proline Flo-Tek Raptor
Proline Tundra
JConcepts Hi-Flo Raptor
JConcepts F250 (new body style)
TLR 22SCT Laser Cut
I have not run the TLR body yet but it is really thin. The Proline stuff may be thicker but still easy to cut through when using the liquid mask.
As for the parachuting, between all those bodies, all with the "stock" vents cut and no additional areas, the unfortunate winner was the F250 body. No extra holes cut or reamed in the bodies, but that F250 handled better on our track and didn't parachute. It just wasn't the prettiest body to put on one of these things.
Good luck in your search though!