I was at a supplies website the other day, and noticed they had replacement gas nozzles for the Binzel torch on the IMIG 200. The original nozzle is working fine, just wanted a spare as backup. I wasn't at home so couldn't measure or pull a part number, and wound up ordering a nozzle just a touch smaller than the original.
I'm out of town so I can't test it... what's the effect of having a slightly smaller gas nozzle?