sorry for resurrecting but i bought my 1/8 17t eai cog from bens in the first week of october after the complaints in this thread

i'm wondering if all eai cogs are hard to put on, meaning you can only get them on a little before they get stuck (then you have to force it on any more)

out of the three hubs i tried i could only get it on one (after forcing it)

shouldn't the cog thread on all the way without having to put too much force?