If you have the clutch effort reduction kit, make sure the triangular bellcrank piece is oriented correctly. It is not reversible and if installed the wrong way, it will *#%¥-up your clutch release.
In my experience, the formula for the lightest clutch pedal possible is: a diaphragm pressure plate, a (flame suit on) McLeod hydraulic throwout bearing and a 5/8” clutch master cylinder. Unfortunately, installing a hydraulic T/O bearing is not a trivial undertaking. Set-up is critical but once set-up, they work great and are reliable. I’ve only used McLeod’s unit. Early on, they could be problematic, although I had no issues with them. Others did! It seems they were updating the design every 6 months, for a decade, but they now seem to have finalized the design. Bosswrench has had a Tilton unit installed for a long time, without any problems. McLeod makes an 11” diaphragm pressure plate for the Pantera, however; you need to call them to get the part #. Dennis and Adam Quella stock them too. I’ve used a McLeod 10-1/2” diaphragm pressure plate and had no issues with it but the Centerforce 10-1/2” Pantera pressure plate won’t work with a hydraulic T/O bearing unless you remove the counterweights.