For a front player you may want a low/no-rise feed tube as this reduces the hight of your profile, however unless you have a Halo or another force fed loader you may not feed balls as fast, and if you dont have an anti-chop device you may chop balls.
This is the main reason why back players opt for a High rise, simpley because it allows more balls in the stack which reduces the amount of chops, and enables you to shoot that little faster.
Again only relevant if you dont own a halo.
Hope that makes sense........