Gaseous - excellent point
I did my PPL in the 22 then took the 44 type rating soon after qualifying. Whenever i fly the fuel injected 44 i always look for the carb heat prior to descent out of habit.
Not sure whether it would be lodged so heavily in my brain if i did things the other way round.
I would welcome the opportunity to try the 300 but round our way its all 22's.