Solved.
Had it looked at. It was a loose bearing.
Ahoy.
Over the last week or so, my steering has felt way too light.
I've checked the tyre pressures, and they're correct. I've yet to take it in for a once-over at the garage, though.
It could be the position/angle of the bars as i have Renthals (756) on a 1 inch riser set, and they're rotated back a touch for comfort, but the lightness in the steering seems to have only popped-up recently, and i've had the bars/bike for just over 5 months now. Certainly feels lighter with left turns compared to right, which leads me to think it might be a bearing issue.
I think i'm looking to get some pointers on areas to check.