Dave,
I think you once said something along the lines of "I only need maybe 10 styles and be able to play almost any song."
I don't remember your exact quote, and the exact styles, (maybe you could clarify) but the more I think about it...you may be right about that.
In any case, as Gary has pointed out, there are so many styles available, especially for Yamaha, I only ever tweak from those I like the best, and never found the need, or desire, to create a style.
_________________________
Larry "Hawk"
♫ 🎹🎹 ♫ SX-900