A previous GSPD I had a few years ago took a HUGE shunt while riding it in Baja. The Touratech centre stand bash plate took it right in the middle, took such a hit that it bent the actual centre stand. At that point, I knew that without it, I'd have cracked the engine or gearbox case. I just installed the TT engine belly plate/centre stand plate on my '91 GS. I've got no worries of the integrity of the TT stuff.
I've got Wunderlich stuff on my 1200GS, I can tell you that this stuff is a step up from all of them.