We used to fly a Cherokee 140 and a Warrior in our club and the MPH speedo, lack of aural stall warner, shortage of footbrakes and roof mounted trim wheel on the 140 didn't seem to cause anybody constantly swapping between the two any problems (that I know of).
As I understand the pilot in this case to be the owner and thus presumeably using the same aeroplane most of the time, I doubt it even more ..... however high workload/stress situations certainly reduce the ability to respond to the normal number of external stimulii.
Last edited by Dave Gittins; 9th Aug 2007 at 14:02.
Reason: carp spelling