Nice to hear.
Sizing Europe has been a slow-burner for me. I was never remotely near as convinced about that AIG run as most people - soft race, in my view - and I personally believe he was not right in the Champion Hurdle. For all that he travelled well that day, he emptied almost immediately at the foot of the hill.....and whilst the back-injury theory is plausible, David Casey had reported at a preview (my post may still be in TRF archives somewhere) a week before the race, that one of de Bromhead's he'd been galloping that day had "stopped like it'd been shot". OK, this is my own personal conspiracy theory, but the descriptions before and aft, still lead me to believe that it has substance.
Regardless, a horse with a back-injury that goes on to jump fences as well as SE does, has self-evidently left said back-injury well behind, and I don't think this is in anyway a factor in what he has achieved as a chaser. In my view, he was almost-certainly better over fences than he was over hurdles (though possibly not by a great deal).
For my money, history will show that his run behind Sacre in March, was just as good - and probably better - than his win in the Champion Chase two years previously. Despite the fact that he could throw-out the odd peculiar under-par effort, these were mainly under less-than-deal conditions, and he was otherwise thoroughly genuine; with class to match. HdH has campaigned his charge stoutly-enough over the years, and it was in keeping with the horse's character, that he was one of the few who chose to face-down the Aeroplane at Cheltenham, where he ran with an enormous amount of credit, on my reading of the form. There are great similarities between him, and his near contemporary Moscow Flyer; save for the fact that the latter was clearly a deal better as a chaser.
Sizing Europe is a horse I've warmed too over the last couple of seasons, and he is the type of chaser to be celebrated. An absolute credit to connections.