Originally Posted by
Napalm
I think your picks are accentuating the difference. Look again at the bottom of the bush (yeah boy) and notice how they don't even look the same. Meanwhile I bet they looked that way out of the package too.
You did say rubber bushes right - they deform a bit more than urethane ones in general - so they also have more material in places. SO look again and notice the bush is indeed touching on the bottom - just not flush with the mushroom top. because it's probably not flush to begin with.
THus again I wouldn't worry about it.
However as mentioned - few minutes you can take the tops off - check them for locations and if they have play (which I bet they do not) and then put the tops back on.