OK. A high-end RG is basically the same thing as a JEM, just a bit plainer (is that a word?) looking. The JEM neck should be thin enough for anybody, if it's not, then you've got a problem on your hands (no pun intended). Yes, a JS
neck is good for shredding. Just listen to one of Joe's albums for proof. That said, it may not be what you're looking for. I've never had the chance to play a JS
, but from what I hear, the fingerboards aren't very flat, so if you don't like radiused boards, I'd stay away from the JS
series. The JEMs, on the other hand, are extremely flat, which is what most people think of when they hear the word shred. As far as the strat comparisons, you will never, EVER find a strat with a neck remotely as thin or as comfortable as an Ibanez. I find Ibanez necks to be faster not only because of their better dimensions, but the coatings on the Fender necks seems thicker and more plastic-y to me. Remember, when someone tells you that JS
necks are thick, that means that they are thick for an Ibanez.