JB weld, flex seal or full rebuild ?

It was one of their off the shelf grinds.
Then let me share you a bit of info...

I dont grind cams, i do some about tooling and machining... so i was told as the wheel wears... the set profile on the machine will be slightly off...your events will be be off and id assume on both ends equal. Open close.
That said... i have NEVER been happy with every product a company makes, NEVER.
I have had to pick and choose, mix match brands to get where i'm going with it.
Needless to say...I'm disappointed they didn't advertise accurately in your case.

Biggest inaccuracies are with valve springs, not a one is dead nuts what its advertised at a given lift, be it 5 lbs or 20.