You may be spot on with the Honda Gods, but that's the Japanese. Some of the most wonderful bikes to ride but so weak on getting the suspension right. What I found on the ST1300 that I picked up used (31K on it) the front was sagging enough that the dampening was already engaged as soon as I sat on it. Minor bumps or tar strips transmitted right to the handle bars. About 1/2 hour and my hand were asleep. Race Tech described Honda as over dampened and under sprung. Put the springs in that they recomended, I can ride for hours now. The fork brace seemed to clear up the little head shake on deceleration. Awsome bike though, too fast for an old man.If you look at the fork lowers you'll see bosses on them where the fender plate bolts up to each one providing a bridge/brace for the forks.
IIRC either my V65S and/or my VF1000 had a similar plate that went across the top of the fender.
My Wing buddy put a SuperBrace on his 2005 1800 and immediately noticed an improvement. I'm glad to see SB making another run and would like to give one a try.
I'd say Honda didn't put one on the 1300 because they believe it didn't need it. And whadda ya know it saved them money in parts and assembly time. There's a prevailing mindset that if Honda didn't provide it you don't need it. And mortal man cannot improve upon what the Honda Gods wrought.
Did Honda do anything to beef up the 1300's fork tubes or put a little more space between the triple T's? Or did they just drop the idea of putting in a fender brace.
A poorly made third party brace could certainly be a cure worse than the disease scenario. Having a brace similar to the 1100's fender plate would eliminate most naysaying especially if it came from The Big H. Since we don't have that I'm thinking of trying the SuperBrace.