Further Update on Crazy Horse Stage three upgrade.
Although the Mog continued to go well and sound suitably hairy arsed, the thing began to stall at idle. As an occasional (fuel injected) engine tuner myself it seemed to have gone lean on that part of the fuel map. Not knowing the 'ins and outs' of the KH programme and ECU, I had to be told by them that it learns as it goes along. I'd sooner it hadn't!
Long story short, their Workshop manager George made a VERY long trip over here to resolve not. Too early to say that the new fuel map has sorted it permanently, but they are certainly behind their customers. I'm hoping it stops relearning and does what they told it to.