What guide are you talking about?
Quoted from ParaBax:
My auto launcher makes it up the ramp every time, but i had to adjust the guide to make it line up perfect. That coil doesn't get a lot of use, but i would assume that if the kicker and the guide are lined up right it should be no problem.
Also, if you install a flipper fidelity kit (which I fully recommend), you'll need to follow the extra instructions that are supposed to just be for MM. The gopher mechs hit the cabinet speaker if you don't.