There is no mystic in flying from the rhs. Parallax errors affect the DI and ASI more than the most important IFR instruments, i.e. the AI (& if the vacuum fails - the TC and Mag compass). Parallax error on the altimeter is less than instrument error.
There are more variations between individual aircraft and their RNAV fits and controls than the differences between left and right front seats.
However, like most things in flying, it is sensible to be cautious and think things through whenever you do something in a slightly different way to the way you've done it before.
Remember, some aircraft don't have toe or heel brakes on the rhs and so if you are landing on hard runways, or doing any sort of performance landing, you need to be where the brakes are.