You're taking off from a capped field, partaking in a vulchfest instead of taking off 1 field back and coming in with a much more controllable situation, and you're worried you might bend your wingtip, resulting in fewer HP's for your wing?
The answer to your question is this: It doesn't matter. You're in a capped field, and there are tons of bad guys gunning for you. Even if it DID make a huge difference, it really wouldn't matter, because you're a dead man flying any way you look at that situation.
Vulchfests are the reward for the people who establish complete air supremacy over your field. You can either pad their scores, or catch 'em unawares from behind and above- that's WAY more fun, and smart.