I do not use this product, so I am not sure who makes it. About a year ago I had a pro shop operator use something called Kwik Cut--Quick Cut something like that. It did not change the reaction of the ball, it only gave it about 4-6 more feet and a monster backend.
As far as Finesse It II goes, I have used it for years. Infact, when the Pirahna were released there was a sheet of paper that said "Buff with Finesse It". Finesse It has 1500 grit to it. In my 10 years or so of using Finesse It what I have found is more length and a sharp reaction off of the dry. It will not hook in oil.
One thing I wanted to add is that any polish, if you keep applying it will put a high gloss on the ball.
What you may want to look into instead of a polish, is more of a compound finish. If you currently are throwing a dull particle and want some extra length out of it, simply put a 1200-1500 compound finish on it. Storms are the ones I use. I have also used C-300's, and both of them worked well.