I'm right there with you. The gutter is positioned right above the middle of the storage compartment door. However, I'm completely stuck with the A/C draining forward due to the A/C being positioned just behind where the roof starts to slant down forward (2015 Octane T32C, FYI). If the trailer is level, it always drains on the passenger side above the storage door, and I need to make it noticeably out of level, like 2" high on the passenger side, to get it to drain on the other side.
To make matters worse, I only have the one entry to my storage bin because the generator compartment is on the opposite side.
So, I need to live with it or find a way to divert it. I guess the good thing is that I only store my trailering/leveling equipment in that bin due to the small door and awkwardness of getting to the back of the compartment.
2015 Octane T32C
2012 Ford F-250 Lariat/FX4/Diesel