I have an Add-On hitch also and have had no issue with probably 20k miles trailering. I've hauled as much as 550 lbs and no problems. This hitch has 6 connection points, uses a vertical receiver so you needn't cut any tupperware. While you're at this you'll probably need a 5 to 4 wire converter for your trailer, assuming it's a flat four connection. Most would also advise a trailer isolator. With a bit of planning you could have both a 4 and 5 wire trailer connections for flexibility. I also added a connection for an electric cooler power through a relay triggered of the auxiliary power so it shuts off with the key to save your battery. Probably 3 hours work and your done.
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Tom, in Mountain Home, Idaho
2002 GL1800 (Illusion Red) Non-ABS, 128k miles
Retired Air Force
"Audentes Fortuna Juvat"