Quick question about sealant in tubular CX tires

When you get a flat and it seals up, should you still replace the tire afterwards, or will the seal generally hold for the rest of the season?  I flatted in my first race a few weeks ago.  Since then I've ridden the tire a few of times; it's been fine twice and once it lost a few pounds of air, and this week is was slowly losing air in my closet.  Should I replace the tire or double down on sealant?  It's a Clement PDX with tufo sealant, if that matters.

Thanks,

-Colin