I would suggest switching to sequential fuel or crank trigger ignition, but not both at the same time if you go to MS. Just my advice though. It makes life a lot more difficult trying to tune both.

After having had dealt with Megajolt and Megasquirt, there's quite a learning curve. Dealing with MJ I re-mapped about 20 times until I was happy with the settings. Once you go crank-trigger, you probably won't ever want to deal with a distributor again. I felt the difference in low-end torque right away.

I dunno though, MS is a good system, but you get what you pay for. Their website is a complete joke. It's so old and outdated, you wind up going to forums when you have questions anyway. The whole website jumps around like one of those choose-your-own-adventure paperback books back in the early 80s. A lot of the information I found was wrong or outdated, maybe not in 2003 but whatever. Don't get me wrong though, best of luck with your conversion.

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'66 VW Bus (Fuel Injecter'd, disk brakes, airbags susp., IRS, CLK rims)
'12 Chevy Colorado Crew 3.7 I-5