I have to be doing something very wrong. I can do spindle work all day with a skew and have no catches. The second I try hollowing a bowl with a bowl gouge every thing goes to crap.. I can't get the darn things to work without a catch every minute or two. I can use an old fashioned 50 yr old shallow bowl gouge without catches. But these new fangled things have ruined over half the bowls I have worked on. The darn things are round in the shank and roll over extremely easy, the edge being on the upper side just causes the things to roll over and then I get a big spiral shaped scrape into my bowl. I went back and watched you tube videos again. I do not get these things.