If I may offer a simple, pragmatic solution to the particular issue.
The UK, Canada, and USA all need 20hrs cross-country for CPL, and 50hrs for an IR.
The UK has no formal definition of cross-country, in Canada it's 25 miles, in the USA it's 50nm.
So, pick the highest distance requirement of any country you have any plans to be licenced in, log that, and there will never be any ambiguity. And lets face it, even 50nm is no big deal when hour building is it?
That's what I did. I did my UK CPL first, but doing my FAA CPL later there was no issue, and presumably if I ever wanted a Canadian CPL I'd have no problem there either.
G