Posted by Doug on May 13, 2002 at 22:35:43:
In Reply to: Re: Re: Question: piston or rotary valves? posted by Art H on May 13, 2002 at 22:13:13:
Found it! Seems i remember this so well because three years ago I was the one asking which is better.
http://www.chisham.com/tips/bbs/mar1999/messages/10063.html