One enrichment jet larger than the others

As the title states, one of my four metering holes in the enrichment well is significantly larger than the other three. Easily 50-100% greater in diameter.

I know the other 3 aren't partially clogged because when using a flashlight to shine from the side and a magnifying glass to spot down the hole I can see a perfect circumference, and the size is equal across the board. I can get a healthy stream of spray carb cleaner to shoot out of all of them. All the factory markings on the bowls are the same.

So I guess my question is... huh... how... am I missing something? And following that, should I be shopping for a new carb bowl?

 

i wouldn't worry too much about it, once the "choke" is off their out of the picture, warm ups might be a little lumpy but at least you know the problem

 

Ok, thanks Pollock, I'll try not to loose too much sleep over it. If the cold starts are giving me too much trouble I'll look into a new float bowl.