I looking for some cheap nuts on ebay, I ran acrost these. Idea looks easy enough to modify a regular nut with. Has anyone ever heard of this or done it? http://www.ebay.com/itm/AxeMasters-COMPENSATED-SLOTTED-BONE-NUT-for-Fender-and-Copies-Strat-Telecaster-/350587419910?pt=Guitar_Accessories&hash=item51a0a37d06 They claim; "we've specially slotted our compensated nut at the G, B and high E slots. By removing material to the proper depth in those three slots, the scale length for those strings is increased just enough. Now, even if bridge saddle travel is nearing the end, you'll still get the intonation "just right". My sense of intunation sucks. After 20 years, I still have to use the electronic tuner ALL the time, so I would not be a good judge of this. Is this more Snake Oil or a simple detail in setup that actually makes sense?