Just wanted to follow up on the previous post I had. I took the advice of several memeber and tried one of the copper fittings.

Long story short, one 1/2" nylon elbow is as restrictive as 9 copper 90s

Pics:


Opening comparison:


And the results:

Also made this Wye fitting for my new stinger V8 (Dual Outlet) test runs. I really like the copper, I might do more just for something different.