Greg,
I've used mine on Anvilane, too. I kept my Copperhead at box finish for awhile, and boy, mine was REAL SMOOTH. Sometimes carry was suspect, but so is the bowler. I applied the "Snake Oil" for kicks, and the ball is still smooth, just a little stronger late, and carry is a bit better.
My Swarm is just a beast on the back end. I've only used it on fresh conditions, so I haven't experienced the carry-down thing yet, at least where it was bad enough that I needed to put it away.
I get two completely different looks with these two balls. They seem to be a good compliment. Keep us posted on here as to what works for you and what doesn't. Feedback from knowledgeable bowlers is invaluable.
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Lane Carter, Strike Zone Pro Shops - Salt Lake City, Utah
Brunswick Amateur Staff