Captain Obvious
Well, since no one's said it yet I'll state the obvious...
Don't forget to upgrade your hopper, esp. if you're going with an eblade.
An Eggolution or Halo should do nicely. Building a blazing fast cocker is nice, but if your hopper can't keep up you just have a shiny paint blender
And while I'm here, my list of upgrades would look like this:
- Air system
- hopper (see above)
- barrel (freak, ultralite or excel depending on available $$$)
- hinge trigger (personal preference is the Shocktech, followed by Eclipse) or e-frame (eblades rule)
- reg (ergo or AKA sidewinder)
- bolt (either the delrin or the JAM bolt - no more chops)
After that, I'd play with it for a while before putting more money into it. See how it works and if it needs any real performance upgrades.