Surprisingly, the width doesn't bother me all that much. I may try those instructional videos that John suggested a few pages back to get my hands in better shape for the longer scale.
I was really surprised how much they helped me out. I originally only played 5 strings but decided to go back to basics for a while and pretty much only played 4 strings for like 2 months and boy did I notice it when I whipped out the NS-5 again. I do the 1 finger per fret method though so others might have different results than me.
I am at the point where I don't even turn on the DVD and just do the exercises with a metronome. My first half hour to 45 minutes of practice time is spent doing these exercises and once I get them down clean, I increase the tempo and boy does that warm your hands up for any practicing after that. I have also been playing both a 4 string and a 5 string in my practice time as well so I get the feel of both in my hands.
These work for me but obviously, everyone does things differently so you can always change things around to suit your style and practice time better. Just trying to help others out since I saw really good results from this. I work from home so I am lucky enough to be able to play in between meetings (and sometimes on them too, lol) but others might not have as much free time as me.

