Thank you for this post. I learned quite a bit, not the least of which was that Ethanol gas and regular gas will measure out at different float heights, and, hence, the float height must be set with a specific gas type, then, stick with that type.
With multiple carb bikes, especially four, I can see the value of pulling the carb.
For my little KZ200 it is very simple to test the float height without pulling the carb.
I just drain the carb from the little screw on the bottom side, then, using a 3/32" bit of clear, rubber tubing, with one end wrapped with teflon tape, I "screw" the teflon tape into the threaded drain plug hole, then, raise the tube and open the petcock. See below.
Then, to measure: