No but I have worked with leeroy using his. Great for bucket coat and for ewi yes you have to knock it up first but we are not talking the same volume of bags as mono. My lab can earn his money instead of standing there fag in gob and a flask lid of coffee in hand while waiting to drop a bag in the Ritmo. Bloody ten a penny! The beuty of it is having close by and not m's of pipes.
I would consider one for ewi and bucket coats. High volume then its the Ritmo.