I did some measuring of currents in the various fuses, as well as some open circuit voltages...
At the time it was sunny, and the panel was producing an open circuit voltage of 19.5v.
By removing the load fuse and putting the meter in its place, I could measure the current of the load in various configurations... Bearing in mind we are referring to the gazebo and 5 post caps, here are the numbers...
Full on (255,255,255) = 5.8A, so I replaced the 10A load fuse with a 7.5A one. On the bench, one postcap at full bore was measuring between 400mA and 450mA.