The real point here is the op wants a nice medium gear and back to that is where we should be... 410's are a street extreme and 323's are at the lower end... Of course you can go lower and higher....
If you want to hit the middle 355...
Having done the 3:23's previously , then going to 3:91's, I am now trying 3:55's hoping exactly that.
I'll soon find out if its the sweet spot for me. I don't disagree with the math presented here, engineering is built on it. I also know that real world applications can be a factor in performance as well. Somewhere using both is the answer I'm after.
