Pretty much everyone who used the Storms on 1100's agreed they felt better with higher pressure than the Honda recommendation. I'd say opinions varied from my 2 psi over to as much as 5 psi. A couple of things to consider:
While inflation is measured cold, the max pressure molded into the sidewall is just that, Maximum, even when hot. So you don't want to push the cold pressure too close to maximum.
While some people like a lot of extra pressure, I felt it made the tires steer too quickly. Then again, I'm fairly light, so higher pressure might be ok if you're a big guy.
I say try the tires at about +2, then again at +4, and see if you can tell the difference, and which you like better.
Finally, an old rule of thumb is that tires are inflated properly when they gain about 10% in measured psi between cold and hot. So check your cold pressure, go out on a highway ride, then check pressures right away. I wouldn't worry too much about being right at 10%, but if the pressure rise is significantly higher, your starting pressure was too low. And vice versa.
HTH,
