I spent this past weekend ice diving with Jeff at Rockport Dive Center in Ontario. He carries si-tech, and when I mentioned my issue he pulled out the repair manual. In fact it's a piece of cake. If you peel off the Meg sticker you will find that underneath is a hole for an allen key. Put one there, another on the other side and the whole thing comes apart quite easily.
The stickers are supposed to be replaced after this, so you either need to get some from ISC (if having little logos is important to you), or use generic si-tech ones from your LDS. In truth you could use any damn thing, or nothing at all, its pretty much cosmetic.

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Homer to Bart: “When a woman says nothing’s wrong, everything is wrong. And when a woman says everything’s wrong, EVERYTHING is wrong. And when a woman says something’s not funny, you better not laugh your ass off!”
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www.robinfante.blogspot.com for trip reports and pics.