Dene and netters I have flown Cessna & Piper products among others for going on 4 years now and have never had a gear retraction problem where the gear came up prematurely, on a complex aircraft. I have personally seen 3 of my friends go through all kinds of headaches due to the use of pitot switch prevented retraction and trailing arm gear in the Beech Duchess. Twice on the same aircraft! And the second time was on the return to service test flight right in front of the FAA. The physical down & up limit switches, commonly known for the down position as squat switches, are old reliable and in the case of retractable gear it is very comforting to know that these are the indications you are seeing on your panel. I would not use a pitot pressure switch if it were my aircraft. There is no denying when the gear is compressed due to being on the ground.
Colin & Bev Rainey KR2(td) N96TA Sanford, FL crain...@cfl.rr.com or crbrn9...@hotmail.com http://kr-builder.org/Colin/index.html