Linear flippers suck. Get a conversion kit to make them like the previous style, rotational flipper. You do all that work to get the flips Just Right, then the metal and Teflon bang around a little and you're back to sticky-icky.
http://www.pbresource.com/rebuildkit.html#KT-BFLIP03
Not sure if you can re-use the baseplate. If you can, spin it around so all your screw holes will be fresh.