I'd personally suggest taking Photon Blade Fever and Rapid Boost and converting them into passives. Not at the same power level as they currently are, of course, but make them react in some way that helps congeal gameplay styles around them. And importantly, free up that bar space for techniques.
After investing as much time into this game, and particularly into Bouncer, as I have - I firmly think that at least for Bouncer, the active stance and active skills should be reworked into something else entirely simply because sub-palette space is at a premium for a class that already pretty much has to cast techniques from their sub-palette anyway.
As it is currently, I have to have an entire sub-palette book dedicated just to Bouncer to have all of the things I need, and I'm still going to have to rework it a bit once again when complex PAs come out.
I do agree that for how it is currently, giving a streamlined way to swap between the two weapon types would be great - maybe holding the Weapon Action for a second (like holding the Hero PAs) to swap to the other weapon? Since that gets used a bunch anyway.