Beautiful work CCT!
I myself am a PC user and have used 3m products which i love. But my main source of product for most of my customers is the PRIMA line. (glide, swirl, and epic for synth wax) Made by Detailers Paradise in TX. Great product for a great price.
Im not picking sides here. Well, actually I am. CCT's words are as plain and simple as the air we're breathing. Even if he's a grumpy ol man :-p Your truck doesn't need the UDM at this time.
Just say you want to use it though. try it out on an old hood or like he said, on a test car and work in 2x2 spots. but as far as your truck goes only thing i would use it for now is maybe putting a bonnet over a firm pad to remove wax after application. at speeds 2 or 3. Nothing higher!
Like many posts before. Autopia is a great source of info for detailing. But its like the honda civic forum of the internet. Everything there thinks Menz, and Zymol are top notch cause it costs $30k a bottle. When i do many cars with a $17 bottle of prima.
My pad choice is Lake country. As is everyone else that uses a UDM or PC. The product of course is gonna be your choice and your budget. Don't bother with scratch X becase it takes 3x the amount and in that case is taking more of your paint in the process.
Heres an example on some black cars i did with the prima line and just using a Porter Cable.
Looks good wet right?...wrong.
under a light: Front Fender
Fender Correction after 2 passes w/ prima swirl
Test spot on trunk:
This is just with the SWIRL. No wax even applied yet:
12 hours later-
My Nissan Frontier door:

After 1 pass with Swirl
My hood:
Still some slight marring, but with a PC im limited to so much. this truck has been off-road many times and will need a 2k grit sanding and rotary for correction. on top of orange peal paint.
best of luck to ya.
Adam