I have a couple hundred hours in a IIIA, N75LS. I know the OP asked about a II, just brought back memories of the IIIA. This particular Cheyenne (1984, 42-5501017) was the flagship when Lear Siegler owned Piper. The "A" model had the -61 Pratts (850 SHP, flat rated to 720) it was quite fast. On...