I answered in another thread that Andersen does make a longer bracket for underslung, but it is special order. I didn't know about it when I got mine, and I suspect most Jayco owners with Andersen don't have them (and probably don't know about them). Andersen did without for a long time before they began making them on request. In my case I had to add a 3-inch link to clear the solar port on my a-frame, and that does reduce the angle a bit.
2022 Jay Feather Micro 166FBS
2019 F150 SuperCrew Short Bed 2.7L
Andersen WDH, 1000 lb Sumo Springs
Past: 2015 Winnebago View, 2004 Blue Bird M380, 1990 Blue Bird WB40, 2003 Safari Zanzibar, 1998 Safari Sahara