Well, you could try Tavatri's SNES Sharp Pixel mod. I think Borti was working on a PCB for it last year. Not sure what came of it. The prototyping nature of the circuit has a ton of stacked components if you try to "float it" without a PCB. Results for those that tried it have been mixed.
Google just brings me back to your post, can you tell me more about this?
I may be making a few comparison photos for you guys since I have my RGB-modded Trinitron CRT and retro_console_accessories cables. My old SNES is an SHVC, and I've modded it for Component and it's giving me very sharp pixels on Component thus dodging the blurry RGB issue. I have a Snes Jr that gives me great RGB with the RetroRGB board, though I still need to add s-video to it (for convenience and luma sync). And my SFC is one of the S-RGB's, either 01 or 02, I will check later (that system is currently getting a retro bright).
Even using RGB through my OSSC on a Vizio P75, I find the component output from my SNES to be sharper. The only thing I wonder about is the colors look a bit muted, still the razor sharp pixels is well worth it.