I don't know about others here, but figure-8's aren't a big deal for me. The trick is to keep your head looking where you want to go and TRUST your bike to follow through. But, like riding a bike, things like this demand practice, and no amount of YT videos or Internet forums will ever prepare you for ACTUALLY getting in the saddle and just doing it!
Perhaps the biggest disadvantage on our R18's is they LOVE to scrape footpegs if you try narrow turns like a liter bike. So don't get bothered that your turning radius is that of a fat walrus
Sign up for an MSF course if you don't feel that self practice is sufficient.
Mike