I also had a Pro Armor swinger skid. I beat that thing to heck. Was always straightening it, until it finally cracked and busted. I cut a bunch of gussets out of 1/4" and brought it to a buddy of mine who welds a lot more aluminum than I do and had him tig it all back together with the extra gussets. It wasn't long after that that I removed it for the last time due to all the cracks and breakage. I ended up buying a DG Laser Series skid that is made out of stainless, but not very thick stainless. The Laser skid fits like crap. All the mounting holes are on the same plane, but as you guys know they are at different heights so I had to make some spacers for it to bolt up properly. And yes it is for a TRX450R as that is laser cut into the skid plate lol. Anyway, It fell off during a ride and I never put it back on. It held up ok, but the plate bent and flexed too much and the sprocket chewed through the UHMW chain slider and ripped the rivet off so I have to reattach that, granted I was running a 42 tooth rear sprocket. Long story short, I would like to make a new skid out of 1/4" stainless. That is the only thing that will hold up to abuse without bending and cracking, it won't gouge like aluminum, it won't rust, and I can make it myself.