Bobby,
Love that long front fender (and the whole Nishiki for that matter). Do you have any issues with front fender wobble at higher speeds?
I have almost that long a front fender on a very similar bike setup (Surly Bridge Club with 27.5" Kahva 2.1" studded tires and BridgeStone 60mm fenders) and I had to add another mounting strut (tied to one of the original ones) to stiffen it and reduce the harmonic vibration (and the rubbing of the tire lugs/studs on the mounting brackets). The fenders were fine at a reasonably close spacing when the rubber extension was removed (lowering the weight at the end of the fender and reducing the pendulum effect), but with the extension in place the fender mounting needed to be stiffened.
Mark