I have had very good luck with some Michelin Krylions with Specialized tubes with the goo in them, (airlock?). I figure they add weight, but many times I have heard a tire start to go and seal themselves up and I have not had a catastrophic flat in a long time, until I wore out the tires recently and the tube came through it! I weigh more than I should, so the extra weight can't compare to the extra 20lbs I carry around.

I am looking for new tires for my new SuperSix and am planning on getting Michelins again, probably going to run Specialized tubes also.

Cheers!
Michael S.