Is it really that hard to describe what is going on? There are four types of downstrokes, and four types of upstrokes, let me name them like this (but a better name is possible):
- tDt is trapped, downstroke, trapped: sweeping motion.
- tDf is trapped, downstroke, free: a foundation of DSX
- fDt is free, downstroke, trapped: a foundation of USX
- fDf is free, downstroke, free: a foundation of DBX
- tUt is trapped, upstroke, trapped: sweeping motion.
- tUf is trapped, upstroke, free: a foundation of USX
- fUt is free, upstroke, trapped: a foundation of DSX
- fUf is free, upstroke, free: a foundation of USX
So USX is fDt + tUf at a minimum. But throw in some tDt for sweeping in one direction. Then perhaps some people throw in some fDf to get free again on a downstroke in certain cases, etc. I’m not sure what the player does after the fDf, as I’ve never seen an explanation.
I’m not saying this notation is best, but one word should define the particular stroke.
Statements like “I’m a USX player and doing a downstroke” are fuzzy, as which one of the four downstrokes did they mean? One has to try to infer this from the context, and this has been going on in CtC since the beginning, and it will likely never change, as terms like “downstroke” are intentionally overloaded with meaning that can only be extracted from context.
IMHO the clock-face stuff is quite good, and while some people will get confused about the phase of the clock (due to rotation of their forearm), many people will get it. I’m sure that people can easily learn both USX and DSX if they try (Troy has certainly learned every technique), but most people don’t have that degree of interest, and I think the current trend is towards getting students started ASAP in a pragmatic way, so it’s about quick takeoff for them.
Anyway, I believe that fuzzy notation at the bottom (not being able to enumerate the 8 types of strokes) leads to fuzzy notation everywhere. This also holds for TABs, as well, as they’re fuzzy, too.