Jpr, you are correct, I think most all lane 1 balls and brunswick balls are a version of either Pk 17,18 or 19 with some changes in formulation or adding different particle loads or none at all, They could make suttle changes to the resin and call it a new coverstock, In theroy it is.
Just like the PBA "Elite" line of balls, Brunswick is mfg, These balls are not going to be much different then what they are doing now in there line and in lane 1's Just some diferent core and coverstock combos, Retro
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Tripping 10's, Its all about entry angle into the hole!!

Cherry C/2 (2)

Tsunami

Super Carbide

Emerald

Cobalt

Cranberry

EPXT1

Rhino PTE

Guranteed

Ultimate Inferno

Goliath

Zone Classic

Target Zone