YES IT DOES!!

Yesterday on my ride,at mile 22 of 40, I hear a quick, loud, pssssst!
I can feel that the tire still has some air in it and I finish my climb, about 1/2 mile. I stop and give the tire a squeeze. It can't have more than about 20-30 psi in it. The Slime sealed it and I could still ride it (tubular). I decided to ride it further just to see what would happen.

After about 4-5 miles it still had the same amount of psi. I decided to give it a shot of co2, because the 15-20 mph wind combined with the tire situation was really sucking.
It took the co2 with out any leakage and I finished my ride with out problem.

It's still holding today. I think I will ride this tire on my shorter, high intensity rides this week to see what happens. I'll be close enough to home it won't be a problem.