Thanks! The link saved me a lot of time ...

I was in the process of converting each combination to mph. Here's the output for my extreme gears

I guess what I'm really trying to figure out is if the lower gears you get with a compact are worth sacrificing the higher gears you get with a standard crank. But I know there are TONS of posts about this, so no need to respond, I'm just trying to understand the issues by looking at the numbers.