make sure this isn't just an optical illusion. See if the spacing is any different than the thickness of the washer. If it is closer than that distance, there is definitely something wrong, and you should return it, but I have a feeling that it's just close, but not getting any closer.
One question: why are you pushing hard on the thumbstud? This is an Axis lock. If it is not smooth as silk, it must be tightened down way too much.
My instruction for adjusting the pivot tension on an Axis lock:
Loosen the pivot, then hold the knife horizontally, open-side-down, then retract the lock. The blade should swing out. Tighten a little at a time until the blade won't swing out any more, then flick it open and closed a few times. It will now swing out, so tighten again, and repeat until it will no longer drop. Now, when you pull it out of your pocket, reach for the lock instead of the thumbstud, retract the lock and give it a flick. Opens as fast as an auto (although you don't have to flick the auto, so it still has an advantage if it were legal). You can close it the same way. Practice for a while and you will forget that the blade swings; it's either open or closed, but ceases to exist in between.
After this, you will only use the thumbstud in sheeple-infested areas. I was foolin' around earlier with a 705 in my left pocket and a 730 in my right. I've practiced enough that I can open them both in unison
--JB
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