TBH, I suspect any difference will be in the instrument itself, not the electronics. Given the state of the guitar's construction, that's likely to be the problem.
And FWIW, I got significantly-improved playability on my 300 by carefully taking sandpaper to the fretboard for a bit of reprofiling. Ideally I'd have defretted it and refretted it, of course, but the quick-and-dirty option has worked OK.
I believe the more expensive 600 has a lefty version. But like most makers, the mass-produced low-end versions don't cater for lefties.