There's no denying that the PGM-IV card is trick, but as I say, personally I think it's a case of choose your preferred setup (stock or HRC), and stick with it.

I can understand why it could sometimes be useful to revert to stock, say for a ministry/DOT test in some countries, but for practicality, it just doesn't make sense.

As for the integrated RC Valve circuit on the PGM-II/III/IV, I think if it fails and you DO regularly maintain your valves and cables, then it's just simply "bad luck"! On the whole, the NSR250 electronics are incredibly robust and reliable.
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Andy.
NSR-WORLD.COM

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