Saitek levers forward, on-screen sliders go up, in-cockpit levers go down, prop-pitch dial hands go anti-clockwise.

Physical (Saitek) levers match on-screen sliders correctly. (A)

In-cockpit levers match dial-hand direction correctly. (B)

(A) and (B) do not match each other correctly.

Un-reversing the physical lever axis in controls makes everything work correctly EXCEPT the on-screen sliders, which indicate the opposite direction (I had reverse set originally).

Basically the whole schmiel is FUBAR.