Greatly, and I don't see anybody else looking at it, so I wonder if this is an issue just for me?
The Fourfold Feather gauge
It's optimal that, to achieve the maximum potential at the Technical Step burst windows, we have to go through the whole pre-TS phases treating that gauge as if it had just "one slot", because we need to hoard 3 feathers for the burst phase.
What is the issue? Um, despite it probably not being an intentional design choice? Having a 1-slot feather gauge leads to a very inflexible charge system. We can't use our feather pool in a clever way because we need to save 3/4 of it, unless you want to risk reaching the TS phase starved of feathers.
What, then? My proposed solution is to have Flourish (the ability) also force the flourished weaponskills to have a 100% chance to proc a feather, this way we can align Flourish recast timer with TS and having an empty feather gauge when you reach it wouldn't be as bad