I have a pin up 4 1/2 pin to pap, it has pretty good length I fear pin high for him would be too long unless really dry. I have pretty good speed probably 17.5-18 at the pins and around 330 rev rate and more of a forward roll.
I find that sometimes it needs to have more axis tilt added with a softer release to hookup at the right point on medium light patterns. Shot 207 with it last time out so the hit is very good when it makes the turn hard enough.
Seems to actually outhook my Ogre Pearl which is a big hit and miss kind of ball for me, The SS has the same pin placement. So that cover is from being a weak cover and needs friction help to turn with authority, I am going to go 4k with OP and then go dull if that fails.