I used all that other "trick" stuff and found that white shoe polish worked best. It was much easier to apply, too. Only problem is there's little flex. Notice the cracking in the center of the lettering. This only happened to the taller 295s. The lower profilet 215's at front didn't crack because of less sidewall flex. This is how lettered tires look after a few laps anyhow. A little touch up with the shoe polish put them back into show condition.
