clear gets in them, but there's still a dimple. you just put a screw in like before and all is well.

I would say just clear over them, then predrill before adding the screws back in , otherwise the screw may lift the CC off the playfield

Drill em & screw em.

The clear often tends to avoid holes and builds a little tension mound around them.

I always drill them. Doing a High Speed playfield swap right now and I pre-drill all the holes that screw directly into the playfield...the holes that come from Classic are still too small (better too small than too big) for the screws which results in "mounding". Always want the proper size hole for a screw... If in doubt try in a scrap piece of wood first.

Followup... As info I pre drill playfield holes where the screw goes into the wood with a 3/32" bit. Believe that's the same one I use for the wire lane guides as well.

Screw it!

Just drill first.