Roll seems to get a bad rep as compared to Rock, but I find Rock to only be enjoyable when you have long roads with few stoplights in between. I am a fairly aggressive rider and am comfortable saying Roll is my preferred mode.
I’ve had the bike for about 3 weeks in colder Chicago weather. So I’m hoping it’s the result of the cold weather and winter fuel blends. If it doesn’t improve in the warmer weather, I’ll bring it in.