Looking for advice on getting another Rival for an inconsistent "track shot" condition house. Synthetic heads, wooden lanes, light oil outside, medium to heavy in center, dirty backends. Thinking of a short pin,.5 - 1.0", with pin in palm, near bridge and cg either below or shifted right a bit. More than likely will polish to get it down the lane later than pin over Rival I already have, very light polish on that on, to keep ball in play and eliminate over / under potential. Medium to high revs, high track, PAP 5" x 0, speed at deck 15 mph. Any advice appreciated. May also look at pin over Wrath, 5 x 5 and hope it covers the sloppy backends?