I had a track spare plus which cracked. I replaced with a BW spare, just to try something a little different.
The BW spare - the core seemed too strong. It make the ball want to roll and hook early, not that a plastic would do that. It just seemed the core would put it through a motion and then the shape would be gone very early. So on a super dry condition where the core would help, it would go through it's motion too early, and just be a dud later down lane.
Track spare plus was so much easier to use. More of a long arcing motion. So you get that arcing motion and a very long phase where the core was really helpful. I should have just gotten another spare plus.
