letters are really more for character reference arent they? If the guy is a bad pilot, it will show in his checkride/PC history etc. theres no way he passed every checkride and has no blemishes on his record, yet the squadron wont let him sign for the jet. come on now, every unit has had guys go off the runway, ding wingtips, blow tires, etc etc and they lose their qual, come back in the sim and get rechecked, and theyre back out on the line signing for airplanes.

if theres guys out there that are truly horrible pilots, just dont write them a letter. their flying history will speak for itself and they wont make it through.