Well I still work at the detail shop and I've learned quite a few things.
I bought a Porter Cable DA and it really does help.
On Saturday, I compounded, polished, and waxed my car using the DA. Really speeds up the process and keeping my arms from dying.
Used Ultimate Compound, followed by Mirror Glaze 205, then NXT wax. Really pops and shines now. I'll get the pictures finished soonish
Evan, based on your post, I can tell you have grown and gained some good valuable experience within the detailing industry and used car industry. Keep practicing with the PC DA and master it. Then expand and work on other cars. Within 1-2 years maybe you will follow the same path as me who knows..... Keep it up bro!