Well, my enthusiasm has been curbed somewhat. First off, with the rubber sleeve as is, the activation force it contributes is pretty high, around 55g or so. If you shave off about a millimeter of the rubber at the top of the sleeve, you reduce the force to around 42g, but you also loose a bit of travel because the keycap will no longer fully rebound. Also, if you want to make it work with normal keycaps, you have to shave the top of the sleeve off even more, so you end up loosing more travel as well. At this point, I'd say there are too many caveats for this to be worth my while.
For sadists: if you turn the rubber sleeve inside out and then attach it to the keycap, you'll make your switch feel just like Cherry MYs.