James, if I were you - I'd never ever do a single transliterated exercise. Cyrillic is not Chinese, it's merely an alphabet, pretty close to Latin. If you are into Russian - you'd better master it.
But then again, it's only my opinion )
I know, I don't want to do transliteration - that's why I want to turn it off. I actually went to college for Russian +10 years ago, so I'm using Duo as a way to brush up on all the skills I've lost along the way.