@L8FAN, hang on, I like the idea of you comparing the two (three) layouts side by side as long as it doesn't break your brain!
However it's really difficult to evaluate a layout in such little time. I doubt 30 minutes or even 2 weeks under a new layout, is enough, even though it might sound and feel like a lot.
F key killing you under Dvorak? How about the B key under Colemak? Each has it's own quirks. I can't say that the F key has really bothered me ever with Dvorak, however it could be a weakness (hard to tell when you don't know any better.)
You also seem to be quite opinionated about how great Colemak is, even though you've barely used it!
When you practice frequently (moreso when you are starting out), you can strain your fingers, which then makes it hard to identify whether it's layout related or just fatigue. I think stretching is more tiresome on the fingers compared with floating, but you might find floating is more tiresome on the upper body!
--
Physicians deafen our ears with the Honorificabilitudinitatibus of their heavenly Panacaea, their sovereign Guiacum.