Posted by Steven on April 27, 2003 at 20:23:35:
Hi;
Here's another newbie question. Look...I'm not going to learn if I don't ask!
Can someone please explain the pros and cons associated with piston valves vs. rotary valves?
I'm in the process of choosing a helicon, and I want to know which valve system is preferable.
I appreciate your time and patience.