What would you say would be too high in relation to KEI?
For example, If my KEI is 10... would an R/S of 1 (say 3,000 results for 3,000 searches) be low enough or should I shoot for something in the decimal range?
I got to be honest with ya, I don't bother what the R/S ratio is, for as long as the KEI is high that's enough for me. It's not really something that I have sat down and experimented on. But all in all, just make sure it's low as possible.