i agree that the boots do a pretty good job, but a serious question: did you consider just tossing that tire?

if i had to boot a tire i personally wouldn't race it (i basically wouldn't enter a race with a known issue....a tire failure could have consequences that affect other racers). i'd be more inclined to train on it (i'd still toss it, but my thinking is that a tire failure would probably only affect me).

obviously you were safe and the tire (tread) was just fine....and those park boots are good (but i think they even say for emergency use)... but that repair definitely doesn't decrease the chances of something going wrong.

if i noticed one of my tubulars had a dead spot in the glue, i wouldn't race it.
[MENTION=77814]carpediemracing[/MENTION], [MENTION=196014]shovelhd[/MENTION], [MENTION=364302]Doge[/MENTION] and others might remember a time when officials tested tubulars at the starting line. i know they don't do that any more, but if an official saw that at the start, would they say something?

genuinely curious. not picking on you here but your photo raises the topic.