So after doing a bit of testing with front wheels I seem to have found out that the old narrow zipps are the fastest in the front of a P4, at least at yaws tested which was up to 15 yaw, the tested wheel was a tub with a 19mm tempo on it. But I hate tubs so got an old 808 clincher.
But there aren’t many narrow tyres around now.
Any recommendations for a narrow tyre for this? I wad thinking 20mm supersonic