I use all of my old equipment from one handed that doesn't have a weight hole with the exception of my for a GT which only has two fingers... My PAP did change much but I also already had a ridiculously high track that was almost identical to my two handed track. As for lower weight, when I was first starting I threw 14 and I honestly do think that it made things easier to start learning... Your probably not hitting a finger but rather your thumb and that's totally normal... When I was starting I hit the thumb almost always... Now that I have more control over what I do I lowered my track a little and just barely touch the edge of the thumb. It honestly just takes time to get used to, watch any and every video you can find of Belmo and try and study that! Again, as soon as I go open bowling again ill have a video to post!
2 handed stats:
High game: 288 (2 times now!)
High series: 710
Bag: 900 Global Dream On, Storm Wipe out, Storm Fever Pitch, Original Black Rhino, Columbia 300 White Dot