Some thoughts from doing 10 pf swaps so far
1. I drill out the lane guide holes, clear out the clear etc before hammering home the guides. And the flush gudes behind the flippers, leave those up a little, they will chip the clear (did it). And try not to tighten down the posts otherwise you can lift the clear.
2. Another item I noticed the screws for the kicker contacts are a little long, saw some dimples in the surface (ouch). I just added 3 more plates to each kicker contact to space it out.
3. Also the pop bumper base doesnt quite line up with the ring holes, I used the base as a template to slightly enlarge, elongate the holes with my drill. And you need to dremel the center of the pop hole with the dremel drum sanding bit to enlarge/remove clear.
4. I add a support post at the backside of the upper left drop target plastic. There was a nail on TeamOne, Wade didnt give us a predrill. I just added a plastic post with a screw and washers to support plastic.
5. Anybody using titan rubber, use a 3 3/5 rubber fror behind the drops. I had a 3 inch and its too loose.