I know these guys understand quantum anything more than I ever will, but is having a larger radix specifically a practical way for increasing performance?

If a binary device has a hardware fault, bits that are in error still have a 50% chance of being correct. It seems like a single component failing here would make this worse (five times worse if it wasn't quantum).

I don't know whether or not the pros outweigh the cons here, or at what radix they do (there's probably some statistical analysis that can answer that), but ten just _seems_ like too much.