Well, depends what you are looking for. The 5.0 will start up sooner and have a nice backend for you, although not as much as the original X which will get down the lane further as well. The Rule uses the same core with Goo reactive. It will start to roll sooner than the original X and have less backend in general. The GP2 is an OIL MONSTER! It loves oil, but once the oil goes, so does this ball. A cover change will help, but thats not what this ball was made to do.
In general I have at least 2 balls of all of the ones mentioned above and have used them beside each other. All have the same drill pin under ring, cg in palm, mass bias left of thumb. I leftone of each with factory surface and changed the other. If it came dull, the 2nd one I polished and vice versa.
The GP2 is the strongest by far.
The Rule is 3-4 boards less, great medium ball.
The 5.0 is roughly the same as the Rule, 3-4 boards less, but follows a different ball path.
The original X is about 5-6, if not more, boards less than the GP2 and goes the furthest down the lane and has the most backend out of these 4 balls.
I would suggest either the GP2 or original Rule as the dull surface will help you combat more oil than the polished pearls of the Xceptions.
However, it also depends on what youexactly are looking for another ball to do.
Let us know!
Thanks!
Clint
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Clint Daley-Owner
Lets Go Bowling Daley
Salem, Ohio 44460
TRACK ADVISORY PRO SHOP STAFF
http://www.trackbowling.com/