When you say they are "over effective", is this because your temp gauge reading stays fairly low? If so, then the bike may still be getting nicely to temperature, as I don't think the gauges are necessarily an accurateguide to what temperature the engine is at. I have had bikes and cars where the gauge is in the lower quarter of the range and others that are almost in the middle.cheers. Thats two for keeping. Yes I could have them re finished. I just found them a little over effective at cooling on the sort of trips I seem to do. It just seems to be that I very rarely get stuck in traffic. Thats probally the kiss of death for me now!
Cheers