used mine today, Worked great, if a little wobbly. think I'd need to use 10 segments if I'm honest :-/ also need a finer grit too as the 20's left floor a pretty rough finish imo
with a full set of ten you'll find that you'll get a more efficient and smoother job.. Matt was going to give his a trial??
It was on a skim coat, so I think it just hopped over the low points, but it was left smooth to touch. I did feather it after. Scratched yes, but when feathered there was no fill in to be seen apart from the low points. Will need to try it on a proper coat of screed to see difference??