Every now and then, when I start a slide, I would like to be able to release the pen and produce *no* output, not even the letter I started on. This usually happens when I start on the wrong letter in the first place, or on the first letter of a word if I change my mind about what word I want to use.
Maybe if a slide makes a 360 and comes back on the original spot, that could be the "undo" slide, which produces no output. Yes, sometimes I want just the original letter, and this might conflict.
--dang