So yeah. Have a PAL n64 with an everdrive, are the runs on there legit? Reset time is longer , obviously, and it runs at an accurate speed (as far as I know).

There has never been an official discussion about everdrive. Personally, I am ok with allowing everdrive runs and have accepted a few lower tier everdrive runs. I think there is a lot of confusion about what everdrives and flash carts in general actually do. Some people think they're emulators.

I'd say it's ok to do runs on everdrive, but if you plan on taking the game seriously it's worth investing in an ntsc console and cart.

are there any known differences between everdrive and n64? aside from the aforementioned longer reset time

I have an everdrive that I practice with, but I'm terrible at talking about it from a technical standpoint. As far as I can tell from practicing it feels exactly the same (and I think as far as your N64 hardware can tell, IT IS the same), but apparently there is some extra lag from saving. The most notable difference is that you can't reset to game, only to the everdrive menu which takes a few extra seconds to navigate.

See this: http://lambdan.se/125/everdrive-64-and-speedrunning

Well you can just press start in the menu to access the last game you played. But yeah, just thinking about doing some casual 16/70 star runs.