I agree that working on closer string structures is better instead of spreading out your fingers too much to start. It's important to develop both speed and soul in the music....ie phrasing, vibrato etc. For spread scales...of course people with longer fingers have an advantage...however even with shorter fingers you can become a very fast and accurate player with the right conditioning and keeping a close watch on your technique. Look at Joe Satriani and John Petrucci. They don't have long fingers yet they are smokin fast and very well rounded players in many different styles of playing. I know the pain of working the little finger but keep practicing tighter scales and rest it when it starts to hurt too much. Keep at it.....consistency over time is the key. All the best!!!