Harrop 2300 supercharger to Optimiser 6500

[PeeBee]

You gotta let me know how this unit goes. For years I've only had an analogue unit with a shunt you have to place in series. It works but is a PIA.

Supplier accepted the order then wants to clip me harder on the delivery - never ends. They want another $160 for an expedited shipping or $40 without a guarantee for a British Express Postal service. I doubt I will have the unit by Oct 6 at this rate. I am waiting for a response from the seller about what the slow delivery period is looking like.