ok i don't know if i have the same ES as everyone else, because when i saw huskyomega's video, my structuere of the ES2 looks a lot different. mine has 12 little tiny edges that are covered up by the corner pieces, but thats not what his looked like. Is that the same structure as yours, mkriegs, or anyone else?
that's what mine looked like, it's esentially a 3x3 with a 2x2x2 block bandaged together.
I think finally convinced my friend to let me mod his 2x2 so I will try get a detailed tutorial w/ pictures up by this weekend. But until then, here's a basic breakdown of how I did the mod:
As far as materials go you'll need some super-glue, some spare plastic sheet (IE: from a dead rubiks cube, tupperware, online, etc.), some screws about the same diameter of the DIY screws but a tad shorter, and some springs about the same size as DIY springs but again maybe a bit shorter (you can experiment around w/ length). NOTE: for springs I used pen-springs, for screws I just found some small wood screws, and for plastic sheet I used plastic from a dead super cheap knock off cube. For tools you'll need a drill/drillpress + bits, an exacto knife, and a dremel with a cutting bit and sanding bit or similar.
-Pop off all the cubie shells, there's a little plastic latch on the inside of the cubie, you need to lift up and the shell slides right off
-You'll see what looks sort of like a small 3x3, then just pop out an edge just like a regular 3x3 and disassemble the core mechanism
-There should be something similar to a 3x3 core except there are only 3 center pieces instead of 6.
-There will be pins holding the center caps on, cut them off slightly below where the center pieces are while keeping the center caps in tact. Save the center pieces for later but throw away the pieces of the core you cut off.
-Drill holes in all the stubs where the pins used to be. Make sure they're exactly center/straight and make sure the bit is a size such that the screw will go in and stay snugly. Remember: start small and work your way up, it's easier to take away more material than to add material.
-Cut a piece of plastic sheet big enough to cover the bottom portion of the center pieces. It does not have to fit exactly
-Superglue the plastic pieces to the center caps. Use multiple coats
-Drill a hole in the center of the plastic pieces such that the screw fits easily through but the spring will not fit through. HINT: if the size is just a tad too small try widening the hole with an exacto knife
-Sand over-hang off the plastic pieces so that they're flush with the center caps.
-That's it, reassemble and tune the core mechanism just like it were a rubiks DIY and put the cubies back on.
IMPORTANT NOTE: I wouldn't recommend using silicone spray on the core mechanism. I tried it once and I think it reacted with the super-glue and glued one of my edge pieces in place.
There, thats a bit longer than I originally inteded, but whatever.
My question to you guys is, what is the easiest 2x2 method for someone who does not know any algorithms and would like to get ~15sec times? 
