One debate that struck me as interesting involved the idea of "distributed components", the assertion being that wires and connectors created risk.
So, how many wires are we talking about here?
I pulled up info for SDS CPI, and P-mag plus an EI Commander, since the combination is the only way to remotely compare apples to apples in terms of operator control. (Yes, I know the relative extent of control. Let's not start that debate. This is about wire count.)
Turns out there is very little difference in how much wiring is required. Each requires two power leads, and multiple grounds. Each requires two switches. Total wire count is similar.
Directly addressing physical distribution, the only truly separate critical component is the Hall effect trigger for the CPI. It seems to be pre-wired, requiring only that the installer plug pins into the box connector after running the cable through the firewall, so install risk is minimal.
Both systems have separate coils. The P-mag merely stacks a Ford coil on top of the aluminum body, complete with external wiring.
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