It's possible John, though I think it's more the steering weight/self centring that's done it. Previously I'd spent a while tweaking steering arm heights to near enough eliminate front bump steer completely (checked by going through full range with a laser clamped to the upright). I couldn't get the arm heights quite back to where they were with the latest castor increase, due to limits of adjustment, so I just levelled them and I haven't rechecked the bump steer curve. I might work up the enthusiasm for that eventually!
I fancy getting onto a track again too, to see how it feels now when pushed properly.
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