To add to the 'Proofhide' discussion (funny how we always get here).

I wouldn't use Sno Seal. You can smell the petro chemicals from 10 feet. These saddles don't want or need any oils, waxes are they way to go. I prefer Proofhide but I've also been experimenting with woodwind cork grease, which is really a wax with tallow. Seems very similar to the original Proofhide and it's dirt cheap at any music store.