That sounds like lean mixture to me, at lower throttle openings. You haven't put down your bike specs so it's hard to know. Have you changed anything lately?
It's not a fueling issue. I did the ARK a year and a half ago and have sussed out the jetting. It has 10-15K miles on it with the current jetting and this just started. It has happened at various throttle opening positions.
"The possession of power inevitably spoils the free use of reason." Immanuel Kant
That explains why the sportbikers are driving like lunatics . . .