They had a map of the route on the website last week (which doesn't seem to be there now unless i need my eyes tested!) and it went up that climb. Hope they havent amended it since then because you are right about that road, very nice climb and quiet. Good view of the submarines from the top too!
zizou, the route is still up on the website http://maps.google.co.uk/maps/ms?hl...d=217422379732870917259.0004b1242e9fac89fcd82
If you zoom in to Garelochhead the route takes a left off the A814, then joins the Auchenvennel/Glen Fruin Rd at the top of the hill. The climb I was on about is a wee bit further on the A814 and then joins back on to the route.
Here is the climb on ridewithgps http://ridewithgps.com/routes/776121 Its only a shortish climb of 1.2miles with an avg of 10.5% and a max of 19%.
BTW, where exactly is the Pipe Track out of Drymen? I've heard it mentioned a few times but dont know it. I know the road pretty well though.