Thanks for advice all, managed to find a TP XPS at a good price so pulled the trigger. I suspect in another 12 months or so ill be looking at either a p8 or the successor to the 272 or maybe even an Aurelic equivalent. That being said, the p3 is an excellent bit of kit so I'd be very (happily) surprised if a p8 betters it significantly. As for the 272, id imagine the poster doubting it's abilities hasn't heard one. It's a great match with the 40s and while I have no doubt there's significant upgrade possible and audible via the 40s, I expect that only marginal gains are possible without significant spend.