Meanwhile, I started playing with marbles since I became comfortable with off mandrel work.
There was a bit of a learning curve.
But I finally got to the point where I wasn't having any thermal shocking, so that's always nice.
And now I'm working on finding my marble style.
There's still quite a few challenges. The main one I'm struggling with is keeping the transparent colors from getting scummy. The clarity of borosilicate clear is tough to compete with in soft glass. Maybe this will be what finally gets me to put some effort into learning boro.