I used the stock settings for about 8-10 cases and then dropped my dwell down to 11. Everything else is stock and it works great. The default settings MacDev has on their board are pretty optimum. The only time you'd really want to mess with anything is if you are experiencing any issues. Chopping a bit, increase ball settle delay 1 or 2 ms. Have a little FSDO, increase the ABS a bit. There's really nothing you need to do to the settings in terms of any performance increases though.