Now uncle Tony might be a moody old fart and that but he's not exactly clueless when it comes to Cosworths and divorce settlements.

I don't think anyone on here would disagree on that other than IMA who should be forgiven for this as he's got...well let's just say... 'issues'.

As for Luke and 'Enhanced performance' or rather 'Epic Problems' from what I've read on here...well...best known for being the subject of debate I guess.

Now I don't know what the crack is with this particular case but on the whole I'd feel a lot more comfortable with a map from Tony than from Luke.

Tony has always been extremely honest with me, to the point where he's plain insulting, and from what I can tell and have experienced his knowledge on Cosworths is second to none.
So I do not doubt his opinion in this matter BUT in defence of Luke I will say that I think it's hard to pinpoint the exact cause of the failure simply because there are severeal possible causes.
If anything you could only name the most likely cause.