Hi sm2727
Scanspeak is a great designer, but this has been a hassle for a lot of folks including me with my Chameleon design. It doesn't do anyone any good fighting the clinging particles that gather on these and in time ruining their performance. After a while I started removing the sticky before packing and sending the speakers off. All I did was wet the tip of my finger and gentle wipe the sticky off. Doing this I found that you can remove some of the gup and there's enough left that it still covers the dome without being sticky.
This also will give a little more detail to the performance. I did a couple mods to this tweeter to open up the sound even more after the gup was gone.
good luck
Michael Green