I think D20 and D30 are awfull to use, it just falls off the wall as you trawel up, so so frustratrating
no rolling ridges?? i found that is all it does.
No such problems with BAL white star or Mapei's tub gear... spreads easy with no slippage and great sticking power.
Saying that i do find all Ardex powder stuff fantastic and i agree with you about the self primming part in D20, but apart from that YUCK!!!