Thanks. Ugh that's kinda rough, but not surprising due to the speeds involved.
Is it possible to go back through your last several races later to see what you want to upload (as I said I think this ability rings a bell, but couldn't find anything with a quick search), and if so any details and/or how many races? Or MUST it be done right after the race?
Not "GP", but tournaments can approximate that type of experience if set up correctly.
I'm pretty sure MKTV saves your last 12 races so you can come back later and do it