Thanks for the replies. I might as well present the source of the claim
"Overall, the guitar is well set up; however, the design of the heel is quite chunky, so access up past the 18th fret is somewhat restricted" and "Look elsewhere for super-fast widdling up past the 12th fret – but otherwise this is a great go-anywhere guitar."
It was from this online review
http://www.theguitarmagazine.com/gear/gl-tribute-series-fallout-review/Guitar World and Music Radar don't mention any of this so I am thinking that review above is somewhat skewed by someone that goes for the contoured heel etc. Now I admit
I have owned and played guitars with this kind of access and also Double cuts and have gravitated toward them, but now after all these years it is not as important to me.
My Les Paul and new ASAT Classic Tribute are easy enough to hit notes I require with enough ease so that's good for me. That reviewer seemed to indicate some quirky going on and in the pics I've viewed I just don't see it. That said I have watched many a video of the Tribute or USA Fallout and see other players riffing just fine. I also don't judge from many Guitar mags but a general consensus from other players be it in person or on forums. I like to give back by sharing my own experiences so see a future with more G&L's and great discussions