Great Minds think alike~
I wouldn't worry about it. I quite regularly Retrofit the combat styles of my characters. Sagisō's already gone through like 10 in my head, and Baiyan at least 4 or 5.
Sagisō's Retrofit is along with a couple convos with Zander is what made me decide to go the full-finesse route with her. She won't have Kiro's Speed, or Katsuo's raw strengths, Kai's Ices monsters, or any of that, but she sure as hell will have just about the best-damned chakra and body control.
Though that means her fighting style might boil down to a micro-level where I'll need to think about the positions of her body while she's moving to actually fight properly. But I Kinda relish the challenge. I've already gone through a plethora of scenario's in my head against Kai, Katsuo and Kiro.
Baiyan's retro fit is still a swordswoman, but she might learn more sword styles and then use her weapon as more a transforming swording, stitching together different types of blades to chain together more moves. Along with a jutsu I'll need to have her travel to the land of Iron to stea- *cough* I mean, learn.
There's also a hyper-dangerous strategy in my head that I'm pinning to have her try out...but if I screw up even the tiniest bit then she'll lose the battle pretty miserably. If it succeeds though, I'll turn a near loss into a perfect victory~
And you people wonder why I don't believe Azumi can beat Sagiso. Me vs. kyuu is a slaughter waiting to happen XD