hi neil
seems a bit pathetic that you can't physically answer the last question yourself?
still, whilst you were in the armchair hey!
it works at the bottom of the stroke so unless you can tell me how at 5mph i can get the arse end to G-out shall we tale it that it's velocity sensative? thought so!
it's there to stop you bottoming out-to slow it down. you would notice it along a line of rollers taken as fast as you dare. the bike recovers far quicker over each one with the HSCD set high.
regards
Taffy