My bike usually runs straight as an arrow and very smooth. There is a nice stretch between towns I can lock my throttle and ride with no hands for about 4 miles with no issues. Lately if I'm loose on the bars or riding with one hand I'm getting some wobble in the 45-55 mph zones. If I take bothe hands of the wobble starts and will quickly go into a "speed wobble" if I don't steady the bars. Ay thoughts?

I did the fall away adjustment last year and I'm wondering if it needs to be redone?

 

Same thing happened to me before. Turned out to be the front tire. Put on a new one and was good as new.

 

Judging by your sig pic you dont have any spokes to come loose so Id say its the tire or maybe you lost a wheel balancing weight

 

Yep check the fall away.
The bearings need to be tight so they act as a steering damper, to loose and you get a wobble, to tight and the bike has a tendency to wander because you loose feel of the road and the bike does not want to track.
I use the bump method, driving down the road with one hand loose on the bar, bump the other grip, if you get any wobble then the front is too loose.
Tires can cause this problem but if the head is adjusted right it will keep it from being noticeable.
Is your front tire cupped real bad?

 

Tire appears to be fine and the weights are still there. I'm thinking the fall away is too loose. I'm going to check that and go from there.

 

I finally got a chance to check the neck bearings. After I tightened them to specs everything is back to normal. Wobble is gone!

 

Mine did the same thing in the spring and was the same issue.