Quote Originally Posted by Yankee Doodle Dandy View Post
I thought about it some and think I understand now.

Since you have removed the rebound circuit from that fork leg the pressure builds up faster as there is no low speed rebound circuit for it to bleed off through which allows the compression stack to react faster therefore eliminating the need for the mid valve.

Taking it one step further, the elimination of the other circuits (ie - mid valve and low speed rebound) is why they say the BPF tend to ride higher in the stroke.
Send me a pm and I will clarify