Not sure how it would "flow" better than gasoline?
Maybe because it turns into a gas its start better, and burns leaner, therefore cold starting may be improved?
But you have to run a coolant heated vaporizer for the propane. That, heats it to make sure it all turns to a gas state as it enters the engine, so your not sucking liquid propane. Im sure your guys run fine, but I bet they would see better performance from heated tanks up there in canada.
Ever shot a paintball gun woth cO2? If your shooting a lot of rounds very quickly for an extended period, in rather cool air temps like the fall... the tanks starts to ice up... and you lose considerable pressure until the tank has had a chance to warm back up. That's why most use nitrogen to shoot now, more expensive, but is unaffected by air temps or extended shooting. Its all gas, and doesn't ice up going from a liquid to gas state.
You'd be hard pressed to get a propane tank to actually explode, most just rupture and shoot all the gas into the air. Ive shot many tanks... even tossed a few into fire pits....they just spin around and fly up in the air, or become a flame thrower if you stick a flare next to it and shoot it... now if the safety valve didn't vent the propane as the tank became heated... well then you'd have a good explosion.
But when's the last time you saw a propane powered car explode? CNG on the other hand... is compressed at a couple thousand Psi, and that might make me a little nervous
Id rather have a flame thrower go off next to me than be covered in gasoline that's more volatile and unable to get off me in a severe accident!