I'll take the fact that no one has yelled at me yet to mean that you're seriously considering the idea of a 35mm RF, so let me plead my case a little further.
Nobody needs two different DSLR systems to keep up with. If you got a 35mm RF, you'd have a very different tool to compliment your DSLR. Voigtlander wide angle lenses will blow away any of the wide zooms for DSLRs, and they're tiny. If you decide you don't like it, you can sell it for practically the same price you pay.
Paul