You guys talking about the big Yak54 3D when you say "my Yak"??
When I launched RF6 to check this out, I was notified there was an update. Funny, I didn't realize how Christmas had gotten in the way. lol.....
Didn't think to try it first before updating. Anyway, a 3D plane was already selected when I got the new version launched and it rolled left/counterclockwise naturally. It also took some throttle blipping to get that started. However, it responded to a touch of aileron to hover without rolling. Gotta say it was nothing like full aileron. Throttle blips started torque rolls to the left. Tried the Sbach and got the same. With our model props all rotating the direction they do, torque rolls really should be naturally toward counterclockwise. Of course, full aileron shouldn't be needed to stabilize. At least with the newest version it wasn't for the couple of models I tried. Man, there are a lot of 3Ds to check out.
Guess I've not tried enough models to duplicate the problem. I did notice something by doing this "short" test. I just noticed how long that short test was. I started this response a half hour ago, realized I needed to crank up RF6 and check out "my Yak" and got lost having fun.

Did a couple of models as described and then thought "hey, lets see some flat spins" and got off track.
Think today might have to be a flying day. Yup..... need to go check the forecast.