Quote Originally Posted by pie_uk View Post
so bascially i can safely move to 3/8 tygon now without getting hissed and booed?

lol
Nah. 3/8" isn't bad but any lower and you'll start seeing marked changes in temps. Like Cathar pointed out, the difference between 1/2" to 3/8" isn't that bad and sees 3/8" as the sweet spot.

Just choose between either 1/2", 7/16" or 3/8" to do whatever suits your needs best.