So I just got the beast back on the road, I have a freshly rebuilt T5 installed, as well as an exedy stage 1 clutch and a FRPP new flywheel. I made sure every bolt was torqued and loctited, and spent a few tries getting the clutch cable adjusted juuuuuust right. I'm still being gentle with everything due to the break-in period but I'm having a weird clutch disengagement issue. When I start it up and drive off, everything's fine. But as it warms up, it acts as if the cable is stretched. It becomes hard to shift, and near impossible to start off in 1st. Floor the clutch pedal all you want, and it's barely enough. But as soon as the car cools off, it's back to perfection. I'm a little bit stumped but I heard on the forum that it could be firewall flex. How would I go about verifying this? I'm not seeing any stress marks or any indication that it is flexing, but it is just sheetmetal that probably gets more pliable as it absorbs engine bay heat so.....maybe?