Using FlatFix or Pit Stop Prophylacticly before race

hi,
i saw this tread on another board and it seems the word was that it is a viable option. especially if using lightweight tires and concerned about flats.
however, the effect on RollResistance was never resolved.
i was wondering if anyone here had any insight into this. comments?

thanks

wouldn’t that negate any advantages of using lightweight tires?

probably, it seems the increase weight is about 30g. so it get’s you back to a regular tire weight but now you have ‘flat protection’

Some Crr info here using Tufo sealant:

http://biketechreview.com/phpBB2/viewtopic.php?t=1751
.