clutch pedal travel issue

[JeremyR]

okay here's some background info:

new master
new slave
hardline with SS damper delete line
new TOB
new fork
new springs/clips
new clutch kit
new flywheel

basically everything on the clutch system is brand new. besides for my pedal, which is in good working condition.

my issue is this. i adjusted the clutch pedal to where i like it, it engages right in the middle of the travel (from floor to stopper on the assembly)

after some hard driving, it feels like the travel/engagement point has moved. i barely press on the pedal at this point to disengage the clutch.

someone told me maybe the fluid is too hot? but this doesnt make sense to me at all, the clutch fluid shouldnt be hot, should it? the master/slave were purchased from frsport less than 1k miles ago. could it just be a bad/weak slave? maybe air in the lines? i've bleed it many times, shouldnt it be easy as shit to bleed without the dampener? im not leaking/losing fluid, as the master is still topped off.

clutch is a spec stage 2+.