The modding is pretty straight forward and easy. I did it with my Rosewill RK-9000 when I tossed 62g and 65g Ergo Clears on it.
Before you get it modded though, I highly suggest you try Ergo Clears with a 55g spring, Red/Brown/Blue spring, 62g spring, and 65g spring and see which one you like the best. I ended up really liking 67g springs, but they're a rarity that I doubt you'll find.
And if you're going to do Ergo Clears, you might as well lube and sticker it.