Ball speed should be relatively the same, as it should be a force created by gravity.
For what my suggestion is worth to you:
I would see what release carries better for you, and what you are more comfortable/consistent with. Whatever you are able to score better with, stick to. Forward roll is not a bad thing.
I have way less revs than any of my teammates, but seem to carry corner pins on a more consistent basis. However, I do not get the light/mixer hits that they can.
It's a give / take, I guess.....
