At certain elevations, mine will hesitate/sputter for a split second around those rpms before she pulls clean. Doesn't happen everytime, just sometimes. It's usually worse when the intakes are plugged up with snow.
Yup was gonna post the same thing. 2014 800 summit all stock. From a slow speed to wot it cuts out for a sec and than goes on as normal. Hopefully hesitation goes away when it's broke in.