That would be a huge help, thanks! (only if it's not too much of an hassle, of course!)
I found this:
"IIRC there was never an AGA-updated revision of HRM or similar from official sources? Or am I mistaken?
That's correct. Reasons for that were rather silly IMHO, they didn't give out updated HRM's because they wanted "hardware hacking to die"."
It seems there is no updated official reference for AGA