I used a single can of fix-a-flat on catrax tire that had an overnight leak. It inflated to a great pressure and sealed the tire perfectly. Did the other one just because it was so easy.
You've obviously never had to change a tire. That stuff is the devil. Messy nasty sh!t patiently waiting for the poor schmuck who has to take that tire off the wheel.
Enjoy your seat in Hell Don, you've earned it.
