I'm going to have to go with you're applying too much product to the pad, or lifting the pad without realizing it. There really isn't a reason that one product would sling more than another.
I'm with you on this point.
I used to deal with the sling and cleanup of products while rotary polishing. Here's how I got around it. I have studied the Kevin Brown method extensively. If you read or have read his articles and postings on pad priming you can see in his posted photos exactly how he primes his pad before polishing or compounding a work section.
What I have done to eliminate 98% of the sling in rotary polishing/compounding is to prime my pad exactly as Kevin shows in his articles, and then (without adding the pea sized dots of product to the pad) just start to work the polish/compound into the work section. I will spread the product around on the work section before cranking up the speed but I find that if I spread the product (M-105) around in too large of a work section it will dry up before I get to polishing over it so I have shrunk the size of my work section a bit to approx. a 1.5 foot squared section.
I use very slow overlapping section passes at approx. 1100 R.P.M. first going from side to side then up and down then back from side to side. If this hasn't corrected the paint defects (and it usually does) I will then "very lightly" mist some water on my work section and pick up the water into my pad quickly before it dries on the panel to rehydrate the product then work a few more section passes. At this point (using a very light water mist on the panel "not the pad") the correcting ability of the M-105 increases significantly and I work it until it goes to clear. This creates a good bit of dust but gets the work done much faster and I'd much rather clean up dust than M-105 splatter.
I have had to/have to test this technique on each and every job that I do as for the size of the work section and amount of product to prime the pad with as the color of paint and amount of direct sunlight will cause the product to act differently from job to job and sometimes even panel to panel but it only takes a few minutes to dial it in. No two detailing jobs are the same and what works for one may not work for the next. You have to have the ability to adjust your technique at the drop of a hat and this can be necessary even in going from one panel to the next on the same car depending on the shape of the panel, if a panel has been repainted, if working outside and the sun is shining on one panel and not the next etc. etc.
The word "Vicissitude" describes paint polishing/compounding very well as there can be a world of ever changing variables to rise above.
vi·cis·si·tudeNoun/vəˈsisəˌt
o͞od/
1. A change of circumstances or fortune, typically one that is unwelcome or unpleasant.
2. Alternation between opposite or contrasting things: "the
vicissitude of the seasons"
Actually the word describes "life in general" well doesn't it?
I hope this helps. TD