Has anyone set up a aircraft profile (performance and Weight & Balance) on the is-version of the RV-12 that you would be willing to share? Send me a private message and I will give you email address to share to.
I set up the Performance Profile to reflect the values for once cruising. This means that initial climb at take off (75kt) is not the Climb TAS displayed in the setup. I account for the fuel burn of the take off initial climb in the Aircraft section by placing 1.5 gallons for Start/Taxi/Takeoff Fuel.
Cruise at 105kt typically is 4.4 or 4.5 gph but I like to be conservative and err on the side of caution. Rather have more fuel in the tank than less than expected.