I have the same engine guard / SV frame and swingarm slider setup as Greywolf. I flopped my bike in a gravel wash the other day. Slider took all the hit, scuffed, no damage. The engine guard bars alone would have sunk right through the gravel to the fairing. I have a center stand, so don't really need the swingarm sliders as lifting points, but they are the easiest thing ever to install.
'04 DL650 - Blue, 57,000 miles, well personalized, gone but loved
'08 WR250R - Goes anywhere
2012 Yamaha Super Ténéré - makes the DL redundant