passthru, if flat trajectory is your only concern then I've got a challengefor you. You need to shoot some heavier arrows and find out just what the actual difference is on your trajectory over the distances you typically shoot game. I've experimented with various arrow weights and I'm not going to tell you my results. You've pretty well made it clear you wouldn't believe me, no matter what.

I challenge you to takethe arrows you shoot now and add weight to them to get them over 400 grains. Shoot them at the same sight settings you have now and compare point of impact. Then weight them up to 450 grains and repeat. YOU do the experiments, come back and post your results, and then we'll compare notes.