Glenn, I use scrapers more than most turners (bunch of bowl turning videos up on You Tube). First, I am curious as to why you had the catch. Inside or outside of the bowl? Inside, you want to be working/cutting slightly above center. Outside, you want to be cutting slightly below center. This allows the cutting edge to fall out of the cut if you get a catch. One frequent cause for catches with both gouges and scrapers is hanging too far out off the tool rest, and you just get over powered. The scraper you are using is not a very big one, so that makes me think that could be part of the reason. Getting too much cutting edge into the wood at one time can be another reason. Since that is a round nose scraper, and only one inch wide, that is not likely to be the cause.
One thing with the handle, I want the tang to be totally inside the wood, and you have a bit sticking out. That should be pounded in all the way, or drill a deeper hole. I do have a clip up on how I make handles for square tang tools where I make a sandwich type handle, 3 pieces of wood, with the center piece being the exact same size/thickness as the tool and cut out a square tang hole, and then glue on the 'bread' on the outside of that. Much better metal support.
If you ever get down Oregon way, stop on by..
robo hippy