If you read the les paul forum, the sustain has definitely not been improved. More like a decrease actually which is expected as it is essentially a semi hollow guitar now. As to whether it sounds better or not, that is subjective.
If that is true, then it's a shame because one of the key attribute of a Les Paul is about good sustain.
OK, this is just a
guess. Gibson's statement about the extra sustain and better sounding by chambering the Les Pauls, IMO, is bullsh*t. I think the REAL REASON why Gibson want to "hole" or "chamber" (as in current models) their regular Les Pauls is because the woods they are using are TOO HEAVY. The mahoganies (and maples) are probably not dried to a moisture content low enough, hence the extra weight. Factors such as saving cost and optimising production could be the main reasons why the woods are not or insufficiently dried.
Think about this. Isn't it funny the much more expensive Custom Shop models are NOT holed or chambered? If chambering supposedly improve the sound and sustain, shouldn't Custom Shop models incorporate it as well? That is because the people in Custom Shop select woods that are not only better but more importantly - air dried to certain moisture level, for desired resonance and
weight. Now you know why Custom Shops guitars cost you 3-4 times more!
Also, if you compare the current Les Pauls to that of say 15-20 years ago, you can hardly feel the weight difference at all. And Gibsons in those earlier days are not holed or chambered. So this can only conclude.....well, you get the picture?
ps. I own a Gibson too. This is not Gibson bashing, but an observation about things that don't seem quite to click. :wink: