It might be a perception thing, but it looks like the the wires at the top of the Keysters sometimes aren't precisely centered over the plunger tip. This means you can either move/bend them till they are (and ensure all four are identical), or IF they are all four "off" in the precise same way (mine were in the last set I got), then choose which of the two possible ways you could hang em off the tang and do em all the same way. I was working on a set of carbs that already had keyster or similar rubber tip parts installed by the PO. No idea what the stockers look like in situ... so no way to compare.
Bottomline here is that IF you have gas when you need it (no fuel starvation at any rpm or throttle position) and you aren't leaking out the side of a float bowl or overflow tube because the flow never shuts off... everything else is moot. So if there is a tiny/minute difference between when one float valve shuts off or turns on the flow, it is an irrelevant anomaly.
Perfectionists will hate me for saying all that - but these are analog street bikes. "Ballpark" functionality is fine within the parameters described. After all, what's the goal here? Rideability, reliability, not catching on fire, etc. So if you get the float levels close enough... if the pilot and main jets are in the juice... and if there are no leaks.. Basically IF the fuel delivery system does all it's supposed to do correctly then you can move on to the next issue (and there is ALWAYS a "next issue").
