This is just my opinion but I've tried the XMT products but I wasen't very pleased with them, they seem to have filers in them and seems to be meant more for a
PC (DA).
They get the job done but you really have to worry about the fillers...but that's just my opinion, hope it helps a little.
Wait you asked "after xmt would one of these products work for a good polish"...xmt is a polish.