Actually, the true WRSP is over 6000', if you believe the USGS maps. The gentler peak to the north is 5977. The USGS picks some distictive (on aerial photos) points for elevation checks; they picked the easier peak to reach by survey, not the highest.
I'm confused. I checked my Red Rock map and the USGS maps, and I'm certain the peak I climbed is the one marked 5977, and I'm also certain that's the one CP refers to as WRSP. On the maps, there's no other peak in the White Rock Hills over 6000' except for what CP calls White Rock Peak and on SP is White Rock Mountain (http://www.summitpost.org/mountain/rock/150935/white-rock-mountain.html)-- that is the peak just SW and connected by the saddle CP describes in the route for WRP. Are you saying 5977 is higher than that or that WRSP is a different peak? If the latter, then which one is it?
Ah, now I see. At least I know I was there! The spot you mention is at the edge of the sheer drop toward the pass, and I remember looking down and thinking "So that's why no one suggested doing both peaks via a ridge traverse."
I remember a cairn but didn't look for a register, though. And I definitely remember the "bend" in the route; one of the pictures here even suggests the bend.
I'll change the elevation to 6020'-- halfway between 6000 and the next contour. I think my photo captions make it pretty clear that the sharp peak is the highpoint, but I'll add something to the text about the 5977 vs. the true highpoint.