> You didn't mention it but did the plane you tested
>have winglets?  And if not, what effect would they have on the propensity to
>"swap ends"?

Marshall Michaelian (SQL)

It appears that the winglets destabilize the airplane slightly directionally. It also appears to reduce your crosswind capability. But they sure look good and really improve the fuel venting system.

Jack Webb
L 360, L IV
ATP, CFI Airplanes & Instruments, Multi, & Sea
Many Type Ratings
Experienced Experimental Test Pilot both multi and single engine
Former Chief Engineering Test Pilot for a Major Manufacturer
AeroSpace Engineer BSAE
Ohio