I've used a PCXP with Poorboy's SSR2.5 and a yellow pad and had it finish LSP ready. It depends on the hardness of the paint and your techniques, but unless you're searching for absolute perfection you should be ok finishing with that combination.
After you've done your 4-6 section passes at high speed and firm pressure, lighten up and lower the RPMs to finish, this will give you the best results.
