Hey,
Using the rotary takes a lot of practice! The gripping or Hop could be caused my many factors including:
1. too much product or saturated pad
2. Not enough product
3. Too low of buffing speed
4. The user was off balance and not square to the panel
5. etc...
Meguiar's #83 works extremely well with the rotary. If you are getting gum-up on the paint, either too much product was being used or the pad was already too saturated. You need to clean the pad with a brush often when using a rotary. I like to clean the pad after every 2 panels. When the pad becomes too saturated, I switch to a new one. I usually use 2 buffing pads per buffing step.
When using #83, the rotary should be spinning ~ 1750 RPM. Keep the pad flat. Tilting can lead to holograms and buffer burns.
Finally, I would strongly encourage you to watch
Meguiar's video: "How to Remove Paint Defects". It gives a very clear explanation on how to use the rotary as well as some of the common mistakes made by beginners.
Give the above a try!
Tim