take two nut tools and load the cam with weight the trigger and work each lobe of the cam with the nut tools and it will slowly pop out one lob at a time. repeat this process and you'll get it out in matter of minutes.
Do you mean the clifftop top of SI, or the GT ledge?
It'll be gone by the end of the weekend, I'm sure.
One addendum to what Patrick said: do *NOT* weight the cam. Just apply even tension to the trigger, while working each lobe individually. A #3 should be easy to do this. Whatever you do, don't hammer, whip or pound.
This was my #3. Has anyone gotten it out? It's on the GTLedge. I'll bring down a case (by that I mean actually 24 bottles) of VT beer for anyone who has it. rwillia3@uvm.edu