I bought a new EAI 17t cog recently for my Kilo TT Stripper.

Dude at my LBS said the threads were a different format. Got a second opinion from another guy working there and we installed it anyway after me being all like "come on you can make it work" (could not return the cog).

Basically they said it was cool but had hesitations due to the threading not being exact for my hub.

Should I be worried? I mean it's on there tight (with a dura ace lockring) and I have no desire to change my cog as I love riding at 48/17. Same ratio I've been riding for almost a decade and have zero plans to change.

Anyway, I'm not going to die or anything right? Slight mismatch in threading but the jawn is on there, and tight. Should be OK right?