Owned an A, recently looked at a C for a friend, who I am led to
believe purchased it. Same cockpit size. For a tall pilot to fit in
an LS-6 comfortably, cut the seat back and bend it below the headrest,
so the headrest tilts forward a bit more. The seat back will then
recline further. Ordinarily, the headrest hits the bulkhead before the
seat adjustment cable gets to maximum tilt.
The A had a flat seat back, the B and C have a curved back, same as
the LS-8.
Jim