Yeah, don't mix water with SRP. I don't get dusting from it unless I use too much or have some dried SRP left over in the pads from the last time. But some products just dust more than others and I do get more dust from SRP than I do from, say,
AIO. Not enough to bother me though...
I too use 4-5 on the PC or I use the Cyclo (~3,800 opms). I use a fairly soft pad (debatable wisdom, that) and I don't work it until it's dry. I wipe it off after it *does* dry with a plush MF and that captures most of the dust.