Yes, FAA has a clear definition of XC, in EASA-land I don’t think there is any of local vs XC (e.g “another aerodrome”, “vicinity”, “ATZ”, “contact en-route”, “navigation”, “30km”…), but for sure 6 landings per hour will not do the job (e.g. circuits)
I think AAA will take your words in good faith (except for a logbook with exactly 50h00min XC )
I’m at 42h x/c and 15 hrs IR training so I would say I’ll be presenting the IAA with 51-52h max! I never found the answer to whether the PPL skills test counts (examiner wrote P1 in my logbook) so I’ll do an extra couple of hours just to be sure.