Thanks for all the responses. Before my trip I replaced the OEM BT022 rear tire with BT023. The front tire looked fine from a tread perspective but maybe I missed something; I decided to to replace it. I have 8K miles on the clock. Guess I was just pushing it. I'll replace the front tire and see if that fixes it.
A few things to consider.
The front steering head is a bit of a hinge (the only hinge besides the rear swing arm). Any oscillation will manifest itself in that location. That means a problem with the REAR of the bike (swing arm/tire) can have just as much impact on front end oscillation (wooble) as the front tire. So don't neglect looking at the rear tire.
The steering head bearings (when properly torqued) will provide SOME dampening of oscillation. So that is also a good thing to check.
Replacing the steering head bearings with tapered bearings is also a popular way to MASK front end oscillation. They allow you to put a bit more torque on them over the ball-type bearings. Although tapered bearings can be torqued higher than ball-type bearings, they also will reduce steering feel to a small degree (this may or may not be enough to bother you). A steering dampener is a better tool to reduce head shake but they are expensive and not widely available for all types of motorcycles so tapered bearings are a popular option. I replaced the head bearings on my Wing with tapered bearings to help MASK the slight front end oscillation that Wings are notorious for when the tires begin to get worn (the available steering dampener was $600 while the bearings were $40. The difference in steering feeling isn't very noticeable on a 1000lb bike).
A loose rear swing arm pivot point can also result in front end oscillation.
So check the tires for correct inflation. I've had motorcycles before that would exhibit slight head shake on corner entry when the front tire wasn't at the MAX cold psi.
If proper pressures then inspect for uneven wear. What is uneven wear? Check that the leading edge of the tread blocks is the same height/depth as the trailing edge of the block on either side of the sipe. Check all the tread blocks on the side and in the center of the tire. If the leading edge of the block is a different height from the trailing edge across the sipe, then you have "uneven" tire wear and that could be the cause of your oscillation. This cupping can often be felt via slight vibrations while riding or even "howling" noises when leaned into a corner.
