Hey there! First of all, great plugin. I practically danced when I saw this ;-) However, I found that [MC3032] (NEG JK FlipFlop) does not work...
To the issue of chunks taking ages to load when stepping through a gate: I had a look at craftworld.java over at craftbukkit github and there is...
Well, you could always call it "Wormhole X-Treme" *g*
As it seems Build 139 added a LoadChunk-Method. Maybe preload destination and adjacent chunks when opening a gate?
I had the same problem. Try updating CraftBukkit to at least Build #126 :) Uh, and try using a button. On the Screenshot there seems to be lever....
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