I have a HF polisher too. But mine is like 3 years old now, I swapped out the backing plate with a 5inch "Astro Pneumatic" backing plate that I copped off amerzon for like 7 or 8 bucks. Oh, and don't bother with the Harbor Freight backing plate or the cheap ass pads they sell at Harbor Freight. I got some Chemical Guys hex-logic pads, and I have an older set of Adam's microfiber pads. For polishing, I have the Adam's two step polishes, and I have the Megiuar's M105 and M205 which actually seems to produce better results than the Adam's, but it does leave a lot more dust than the Adam's Polishes.
I'm in a group on Facebook called "Detailing for Dummies" and a lot of people swear that HD Speed AIO is the best shit known to mankind.
But I have never tried it personally. I'll use up all the polishes, compound and waxes before I end up buying more shit. If you want to come by one day when you are off you're welcome to raid my stash and try out whatever you want. Just let me know.