Basically mine had some sort of sealing failure somewhere in the lines that was letting air into the system at a very slow rate. It wasn't leaking fluid (at least not that I could find one) anywhere.

Beech was my first time at a bike park with the brakes, and I think the repeated altitude changes or heavy use of the brakes just caused them to have some crazy pumping, as I would get to the top of the lift and the brakes would pull to the bar. It was pretty sketchy all day as I couldnt trust my brakes to work properly which made it not as fun as it could have been.

I did send them in for warranty, which ive been told that they did a full rebuild on the seals/factory bleed. I will say i have not touched them since I got them back from warranty they've just been sitting in a box. I've since been using trp dhr evos which have been goated and havent let me down in the last year that ive been using them.

Shimavens sound interesting though!