Now that Summer is here and I've been able to take my GSA Low on some of my favorite "trails" and offroad passes here in Colorado, I'm happy to report the GSA Low is doing well. I've heard some rocks bounce off the skid plate, but nothing that I thought "oh crap" and nothing that's had me concerned at all.
When I compare this to where I rode my Super Tenere with modified suspension, the ST still had gouges and dents in the skid plate and you'd hear rocks bouncing off it all the time. Now, its nowhere like the Africa Twin or XCx where those, I rarely heard any rock hits.
So overall, I'm really pleased that I went with the GSA low.