Tech Pan properly developed in Technidol
has the same contrast as TMax in D-76 and it's curve shape is ruler-straight over a 13-stop range.
It is interesting to peruse the comments in
Unblinking Eye: "I hate this film"; "I too don't really like TP."; "The curve shape is weird"; "Tech Pan has driven me nuts"; all from people who have developed Tech Pan in Ethol TEC, Xtol, Rodinal, Burton 195, TDLC-103, C-41, TD-3, PMK .... every thing above, in or under the darkroom sink except Technidol.
It's not the film that's weird, folks, it's all the weird things people try to develop it in. Kodak only makes one developing recommendation for getting pictoral results out of Tech Pan. If someone tries something else and gets crappy results it isn't the film that's at fault.
The primary use of Tech Pan isn't pictoral photography but high contrast technical photography - hence all the instructions for developing Tech Pan in Dektol and HC-110 and D-19 that are in the data sheet. These only apply if you are doing microscopy or scientific recording.