Paul.
Regarding tire profile, tire pressures etc.
It is my understanding that using a narrow rim and a fat tire (Profile Diag' 1) can lead to instability in that the rim is able to pass sideways across the tire giving some what of a rolling feel to forward movement. ??
Where as using a wider Rim (Diag' 2 ) will give a more stable ride if not a little harder in the ride.??
Your thoughts.
The above is something that came out of Automobile tires i.e. Fitting wide tires on narrow rims. The effects would not however be as dramatic but none the less there should be some effect.
Ron
PS ; Test Pilot (TP1) has been very quiet of late. The Old Fart is OK isn't he??