I may go to a local gymnastics meet Friday evening. No press pass, so I'll have to sit in the stands, but I plan on moving around a lot. I have the 18-200mm kit lens and a Sigma 70-300mm. The lighting probably won't be the greatest, and using the flash will be verboten. If I can't get any good shots because of lighting, well, I'm only out $5 and a couple hours time. Any tips will be greatly appreciated! Thanks.