I've done a few runs of SO SNES, haven't completed one yet while recording though since there's a couple of bosses that are absolutely nightmarish.
Firstly, the Japanese runs I've seen do use Turbo and there are very long periods of just text, so I would recommend that at least turbo should be allowed. You have to constantly turn it on and off though because leaving turbo on actually makes it hard to select actions in battle.
Also the English Translation actually messes a few things up. It changes the way the in-battle Item Menu is navigated because they had to make it fit the longer English words. I think the English translation also adds a few extra items through a Santa shop in the snow town. I found it more comfortable to just run it in Japanese. There's not too much to memorize anyway/
Message me more if you wanna talk about running it, I'd be glad to discuss it with you!
Is there a way to implement that embed code into the site so that when you put nicovideo links in the Video Link box, it recognizes it and automatically embeds? It's cool that it actually works but unfortunately there's no way to put in the embed code ourselves when uploading runs.
Currently links to nicovideo runs do not embed onto the site when you click on a run's video link. I was wondering if this could be implemented some time in the future, as many Japanese runners post their PBs and WRs there.