pah ! I go away on honeymoon for 2 weeks and its all happening

First off , nice work Hurdy, chosen your own path and it will be fascinating to see how the RR day goes, not just ultimate power but the delivery. Great to have choice in the modding world.
For me the biggest takeaway from the writeup was the APR DSG map , I was pretty

You have been very diplomatic on here , and I'm not sure exactly the circumstances the DSG map was put on your car.
APR are a brand who play on the fact they retain the protocols and safety limits as a major selling point!
(notably EGT is the big one)
But ultimately for APR to allow you to run a potentially damaging map (whether created by them OR even worse taken uncertified from another manufacturer) is just not on. You could argue it maybe wasnt/ was running lean, or there was a pre-existing fault, the important differentiation is the removal of the safety limit.
I would never take someone elses software and certify it for another customer to use UNLESS I had certified it was fully tested myself, or maybe even just not supply it until I have had time to test it.
All it takes is one high profile engine failure and your brand confidence is toast!
Maybe this was defined as a test map, but as a minimum you would still do a full throttle run to check the AFR for this 'inherited' map before letting a customer test it. Or if you knew other tuners removed the safety levels then you simply dont use those products (but use them as a template for future work)
For now I'm willing to suspend judgement , as I was until this point really pro APR ,and when the time was right planned to get their remap. Gaz's car runs strong. My confidence is however dented by the information I currently have , and I will certainly be looking to receive some re-assurance.
To say the new map is now APR only is fine , but thats done on a trust basis , which now has been dented.
Hurdy I'm sure 'trusted' that the safety limits would protect his engine, but they werent even there!
Not speaking for anyone , just putting my 2p down , and looking for some answers , as I had selected APR as my map of choice up to this point.
Unless you can read the code yourself , it really is down to 'trust' for remaps
JohnO