I’d advise you ride one first and try to lug the engine. It felt to me like the counter balancer, (much like on my several 950 KTMs), needs to hit a few thousand RPM (4-5000) before it starts to make a difference. It wasn’t a fuel problem, it was a mechanical imbalance that I believe still exists as they didn’t change it in the 16/17/18/19 Dukes or RC. But like the MPG noted above, you will find everyone experiences, expectations or opinions are different. To me it was a far too narrow power delivery and horrid vibrations outside of that under a load, and this on a flyweight street bike that I’d stripped to minimal weight.