And another idea...
again probably totally unoriginal but....
what about a series prize for the Club TTs? For example taking your three best times over the series and totalling them up. For one it might encourage riders to come along to more than one TT and another it rewards consistency and commitment rather than the often unhandicapped rider that turns up and rides for a bit of glory (and why not?) but we never see again (OK, I know, another desperate attempt to wangle a medal !! ). It would also give a bit more coherence to the series rather than just being seen as a number of one-off TTs.
What does everybody else think?