Got my revalidation by experience done and signed-off just before Xmas. I understand that the content of your 1 hour flight with an instructor is the subject of advice in an AIC, but its just that - advice - and not mandatory. I spoke to the CAA and they confirmed to me that my signed-off tailwheel conversion (with a flight of greater than 1 hour) was sufficient. I guess you can flunk the flight if the instructor refuses to sign your book, I can see few instructors wanting to sign you off if you are clearly dangerous, irrespective of the purpose of the flight.
(BTW, I did do a successful club checkout in the preceding 12 months, just short of an hour, but it did include PFLs, stalls, steep turns and a circuit or two, which covers most of that AIC).