I forgot to check this but they are back on 20 20 today and it feels the same as it always did, it's amazing the difference it makes, you can feel as little as three clicks I reckon but only by re-doing the same road/roundabout straight away - you get used to the new setting quite quickly.
We still don't have a 'How to guide', perhaps Donkey can post one up here or make a new thread? I really think you could unpin them without removing the wheel.