I think this is a great idea. In particular I’m now curious about the actual difference in seats between the identical looking 3-4-3 LGW 777 and A350, to me I didn’t really notice a difference but lots love the A350 and hate 10 abreast 777, I guess it depends on aisle width too? I look forward to seeing the tables of data expanding.
I would say I’d help but don’t know how I can get a tape measure before my next load of flights. And they’re on A321 and A350 so not much use.