I don't know for certain, to be honest, because I rarely fly either. But "scientifically" speaking... the La7 has the same wing as the La5. It is lighter, so it would have lower wingloading, and it has a more powerful engine, so it would also have better "powerloading". I assume there are more nonsensical terms that I don't know, but I think it'd be safe to assume the La7 turns at least as well as the La5, and probably better. I know the La7 will turn with a 109G2, and out turn any later 109 and all the 190s. It could probably out-turn the P-51, definately the F4U and P-47, probably not the F6F or P-38.