CP reg Long vs Short?

[Glickman]

just wanna make sure its only cosmetic...

also, i havent bought a new reg... well.. ever, just used the stock ones. but i need a new one and this is waht i hear alot of good stuff about, is this what i should go for? such as it vs. a torpedo

[sbpyro]

One of them has a built in macro line fitting.

[mrbrutal]

cp regs come in long and short and with or without gauge port. Long has a buit in straight macroline in the bottom

[onedude36]

*cough*Sidewinder*cough*

and no I don't advocate AKA products in any way shape or form