ORIGINAL: mobowhuntr
There is a problem with your numbers.You don't hardly EVER get an increase in ke when going lighter.
Usually there is another problem,like underspined arrows not being as efficient and/ or tune causing a problem.

.Didn't you have problems with this?
Agreed, and yes, I did. BUT, when I changed to my lighter arrows they were also stiffer so I was able to increase the poundage a little to get it where I like it. The arrows I had before were indeed underspined, so I had to turn the poundage down quite a bit for them to spine properly....These new arrows also seem to transfer energy much more efficiently as well.
So please post this so that others don't get the impression that they can go lighter with arrows without changing anything and increase ke,this doesn't happen hardly ever.
The ke increased because the poundage increased.