I did mange to get a decent finish with this the other day. Mixed it up a lot wetter than BG, put a really tight first coat on 1mm then left it until it went firm, (time varies depending on background) don’t put second coat on until its firm. Then apply another tight second coat. I found the tighter you get it on the wall the better finish. Left it for half an hour then flattened it. Left it for another half an hour then used a flexi trowel and a lot of water. Then another half an hour water and flexi trowel again. Then polished it once it was set. I found if u put it on to thick then you can get into a bit of trouble. And don’t trowel it to much I found that really hard leaving it alone but trust me leave it alone! Hope this helps you a bit