. >> some positive end cay toindi yet too early to really say. i've mentioned colonel grosso -- general grosso, excuse me, is the pilot bonuses. i'd like -- i think we need to have the data at some point if, say, 55% of our pilots stay, we say that's a success for the bonuses. y at some point we need to have some kind of data that say the bonuses are having this kind of impact. i know we always look at the retention we have, but we don't know how many we would have retained anyway out the bonus. your thoughts? >> there's clearly economic rent which is very hard to know. the one thing it does is locks the person in, so it helps us know what we do keep. but i completely agree with you, it's an imprecise tool. >> i agree the commitment thick -- thing is important. it would be nice to know if we're getting a 5% payoff added or 10. could you give us an update on enlisted aviators? >> it's going very well. it's clear that our enlisted airmen are just as talented. they're doing well through the course. we're just starting the cultural piece on how do we