During one particularly vicious night of gaming while drunk in the late-90s, I knocked over a full 12oz beer into my keyboard. I figured it would be destroyed, but I managed to disassemble it, rinse it and dry it out, reassemble it, and it was totally fine. I actually still use that old AT keyboard.
I'm afraid I'm being a bit of a hypocrite when it comes to joysticks. I've done a thorough breakdown and disinfection of every used keyboard I get at the thrift stores, so I should probably do the same for my joysticks as well. When it comes to CH or Thrustmaster stuff, it is pretty easy to work with. I would imagine that tearing down an MS SideWinder 3D Pro or Precision Pro would be difficult and time consuming. I'm not real sure I would even want to tackle the Force Feedback model you're currently working on.
Will you be sharing any pics of this? I sure hope so.
I pride myself on the exceptionally thorough job I do on used keyboards, so I think I'll photograph and document my method the next time I buy one. I'll share it here so others can comment and add their thoughts.