I use UFO to refresh the polished urethane cover on my Mix. It seems to give a slight bit more push to the ball.
You didn't seem to have problems with spare shooting using your Sniper the last time I saw you bowl. If the Sniper is moving, you must have burned a decent track in it.
That was the original Sniper. It was plastic, which comes with it's own problems of cracking. I'm using the Arctic now and it's a urethane pearl. I did have a problem with the track, but the pro shop did a total resurface, which did help, for maybe a week.
When I first got the Arctic, it wasn't that big of a problem. But lately, I'm having real issues. THS, Sport, Nationals etc, I've been hooking away from left and right side spares to the point that it's totally in my head.
A perfect example is this year at the Open in Reno. Team event I was 180, 184, 197. Which made me a few dollars in brackets and actually led our pair in scoring. BUT, the 180 was with 6 strikes, the 184 was with 7 strikes and the 197 was with an open 9th and 10th frame because of poor spare shooting. No splits or washouts, just missing 10's, and a couple of 8/9 pins.
I've lost all confidence in being all to make the ball hold the line.