Showing how much the gaiter has to slide down the shaft in 4th compared to neutral in the 1/2 plane:

Showing the additional offset towards the driver of Vee's gearbox compared to Bee, which exacerbates the problem with the gaiter:

Rubber gaiter inverted, before re-stapling the leather gaiter. The driver's side edge sticks up a bit as with the gearbox offset to that side a bit there is less space for the corrugations:

Fitted, different but not unattractive: