Quote Originally Posted by paulockenden View Post
I still wonder whether it's your valve bodies offering more resistance than normal. I know at least two people asked you what brand they are but I can't see an answer.
I have yet to look to see. They were installed only a couple of years ago and they are the 30mm and 1.5 thread (so no adapter needed). I will check to see if I can find out the brand and post it here.