our department in kahoka has 2 4 wheel drive pickups with gas pumps and 300-400 gallon tanks on board, with high pressure reels. works good for getting in off road areas. dont have to stretch multiple sections of 1 1/2 line from the pumper
I'm with the CFA in Australia and we use both it's a matter of user preference but the two piece is a little more cooler but the jumpsuit feels like your not wearing anything so it makes things a whole lot easier and you have less in the way.