Well its finally chucked it down and having just ridden back from Carlise in it, I've got to say the Bridgestone boots feel very sure footed at motorway speeds (70ish) in the wet. They did not feel quite as secure down the St. Johns in the Vale road where standing water is a problem. (This could be due to the shagged out OE suspension Bimbo2 is running until Motobins deliver the box of suspension goodies I've got on order.)
In comparison to the Conti supertwins on Bimbo1 they were as good if not better on the motorway but lacked a little feel on the greasy twisty Lakeland roads from the motorway to my home. I'll certainly consider another set (with whats been written about their wear characteristic's) when the time comes to replace them.