I certainly think the opposition is resolvable, but I tend to see the aux making the bridge. The inferior can be incorporated to a limited degree successfully without being a threat to stability because it's worked around with the aux. That's often what you see in people too - developing the inferior often just means dealing with the areas its called for & using it to a limited degree that doesn't eclipse the ego.
I just thought more about your labels... the way you describe the J processes sounds like a P perspective, the way it might be experienced when not dominant, & that's part of what's weird about it to me.
To me, Ti/Fe would be constructing & Fi/Te molding. Both groups are structuring reality in some way. "Reflecting" seems a bizarre word for that, unless you mean some kind of mirroring, but even that seems odd.
I don't think the groupings themselves are a wrong way to see things, but I think the names could be better, that's all.