where can i aquire a spat because i will try out to see . according to post they are the dogs nuts, but i canot get my head round these sponge float techniques ie when to use this float . i have seen a plasterer use one on utube months ago but why are they so good to use whyyyyyyyyyyyyyy whyyyyyyyy lets put this phenonemon to bed once and for all sponge float this sponge float that ??? ??? ??? :-\