MSR Micro Rocket, flairs up, flame thrower pattern (straight out), high, med, simmer mode. Burner head shape causes this?
Snow Peak Giga Power GS-100, flairs up, low, flat (spreading) pattern at all speeds. Singed hair on my hand during this test.
Coleman Exponent F1, flares at high, med setting, puffs at a simmer. Highest btu of stoves tested.
MSR Super Fly, flares out badly in all modes, the most dangerous of the test, maybe due to its large burner head.
MSR Rapidfire, remote canister stove, no change in inverted mode, has the generator, basically a Whisperlite with the fuel line for canister fuel. Safest stove tested.
Fuel used was a barely used SP Giga Power canister at mid 50F temp, tested inside at 60F. Stoves were allowed to simmer for a minute before testing. Have fun bping.