Is the process for undertaking a mandatory DIY via GPX the same for overseas as it is for UK?
Couple of things to be aware of:
The DIY form is not great at processing characters not normally found in UK place names. This means that you end up with a control listed in your email as the such and such Caf?. I don't know what it would make of Å or Åmål as control locations...
Googlemaps walking is not necessarily as good in other countries at giving an idea of where you can and can't cycle, be prepared to explain to the org that, no really google may claim that, but you can't actually take a bike over that mountain, through that river, or over that swing bridge...
The DIY orgs are amazing (based on a sample size of 1), and have no issues with the Dutch, Belgian, and German rides I've submitted so far.
One thing I have been curious of, is how timezones work with DIY's. If I say I am going to do a 200k DIY on 01/07/2019, But I decide I want to post pone it, rules say I have to mail the org the day before at the latest, Meaning the email has to be dated 30/06/2019. If I'm doing the ride in Oregon, then the evening before 01/07/2019, is already 01/07/2019 UK time. It's not a problem I've hit up against yet, but it was something I was wondering about the other day.
Good luck!
J