Well I had my 2nd explosion last night. Not really an explosion. I was hollowing out a segmented bowl last night and my bowl ripped from the waste block. It wasn't the screws or the glue or a catch it was the block. I have been using some alder that I had left over from a flat work project and this is the 2nd time this has happened with the alder. I think the problem is the alder but wanted to see if anyone had any input.