ORIGINAL: MO_Bowhnter
Since your carbons are probably much lighter than your aluminums, your point of impact is going to be higher because of the flatter trajectory. If they are flying good (no porpouising, fishtailing, etc.) just adjust your sight and you should be fine.
Actualy I didn't re-tune,I did a paper test.
MO_bowhnter you got a good point,and everything is good there.
they shure show no signs of fishtail,ect.
They did seem to bump up my arrow speed!
I'll have to get out and shoot some more and adjust my sights acordingly.