i've used it three or four times over the past couple of months, that's all. as you say, superb on board. again, the reskims i've done have been bang on. no problems whatsoever. didn't use betonkonatc or whatever the fcuk its called, though, just two coats of pva. would use on reskim, board, sand and cement any day of the week. except a sunday, which is a day of rest. had problems over artex and would avoid that. first artex ceiling i did went on fine. when i went back for another job, though, there was a slight mottled effect here and there. don't know if it was grease or whatever, or maybe the old lath nails reacting with the plaster. or the mp reacting with the artex. dunno. next ceiling i did flash set on me. why? no idea. big one as well. one of those customers who come in every five minutes to ask how it's going ffs. really was a nightmare. felt like curling up in a ball and crying. didn't find it slack for reskims. just set all the beads, dubbing out etc first. no problems. no tearing. anyway, my reskims were fine. problem is you really need somewhere to practice with this other than a paid job. just to get used to it. i'm a bit like an artist and wouldn't want to put my name to something unless it was a work of art.