Gibson completely overreacted IMO, the PRS Singlecut was more of a threat to their sales than copyright infringement. Plus the fact that PRS's Quality Control actually control's the quality of their products, Gibson's QC is more like Questionable Care. Again, IMO. ;)
Back to the topic...
The SD graph thing, I find it totally confusing basing a tonal judgement on subjective data (IMO). I find the current descriptions to be really halpful, they were right on the nail with the Black Dog set I bought a while back. The body wood info should help (and maybe avoid any brand name copyright issues, ie well suited to a mahogany body with maple top, or would suit an ash/alder/basswood body with rosewood 'board, etc).
The current descriptions and resistance figures are pretty spot on IMO. :?