I have a new and unusual sensation coming from the front of the bike. I have experienced it before, but on another bike and don't recall ever figuring out what it was before the bike got sold. It's difficult to describe, so bear with me while I try to find a few "feels like" scenarios. It feels like the front "dips" to one side, like when you're standing with all your weight on one leg and your buddy comes up behind you and bumps the back of the knee that's holding all of your weight. Another way to describe it is as if the front wheel is getting hit by a gust of wind, but just the wheel. It seems to be there at any speed and is not dramatic, but annoying. I have recently changed the fork oil and it was the same volume added to each leg, I checked the level as best I could and will try to check it again this weekend. The springs were equal length and within spec. I pulled the front wheel and checked the bearings, both are free and smooth. The brake pads have even wear, and I don't believe even if one was grabbing more than the other, it would have an effect (both discs are in the same plane as the wheel, and some bikes probably still come with single discs). It does not seem to favor one side or the other, but I have the sensation that it takes more input to turn right (this could me overthinking things, I have always leaned left easier and more confidently than right). So, any ideas?