That's a bit like asking what tyres to put on.

Most guys here I'd say run a standard set up, but there are some who run a 19 front & 41 rear (I think Snapey ran a 19 front & 38 rear) & some who run a 17 front & 41 rear, yours at 17 / 43 would be revving way higher than most, and quite unnecessarily in my opinion, but, as you say, you got it like that & know no different. Each to their own, it's your ride, have it how you like it.
Personally if it were mine, I'd change back to std, if for nothing else other than to try it. Your economy will improve, but your take off's may be slightly down. These bikes have plenty of grunt, they don't need to be ringing themselves to get somewhere. (IMO)
