Sounds like the guys think there may be a missing correct sequence of washers in-there. You can always get a thin spring washer if you decide yours is missing from a prior disassembly. A good auto parts store should have an assortment.
I have noticed that on some of the carb sets I have, it appears that the plungers, while having "fingers" for the choke plungers activate them, could be bent a bit to either open the plunger a bit more, or to synch the plungers together more-completely, to open the same amount, though they all do move a significant amount, I estimate at a quarter-inch, w/o actually measuring it.
I don't know without looking at a disassembled carb body and/or a schematic if there is just a passageway which the plunger exposes, and that the smidgen of additional vertical movement to be gained by a slight tweak of the "fingers" would not have a functional effect on the plungers' operation. In any event, the fingers are all-engaged, they all expose a good-amount of brass rod when the choke is thrown-on, and the choke function seems to be there, though in south Florida, there really isn't much need for a choke. I typically do-not even touch it, and the bike usually-starts w/a very-short crank-over if I have ridden it within the last couple of weeks. I have Gannon's COP's and a DYNA 3000 ignition box, and a Dynojet Stage 7 kit, w/a UFO 4/1 and a home-made exhaust canister because I like to be able to hear.
