regulators and water traps

ok so i have been looking at water traps and regulators. Most of what i have seen (localy) are 1/4 or 3/8. if i use a 3/8 water trap and regulator will i have too much of a “bottleneck” effect for my shockers? or should i just wait and find some 1/2? from what i have seen the 1/2 arent cheap. also if i am running my compressor/tank at 150psi. do i really even need a regulator?

3/8 should be fine if your using the 5/16 line and 1/4 inch valve and no a regulator is not necessary unless you want to run them at a lower psi

I am using all 1/2". 1/2 from the tank. 1/2 line, 1/2 valve, then i think its 1/4 from the valve to each horn. its the HB shocker XL kit.

then dont use the 3/8

ok. i;ll try to find some 1/2 ones local if not i guess i’ll have to order them. i;m tired of waiting on ups…