But maybe the topic has gone off track a bit. The problem I have (which is diminishing due to finger stretching exercises) is that in the 12 bar blues F2 course.
What I notice is that the instructor is able to leave his thumb peeking over the top of the neck when playing the D string. I find this impossible when keeping my index on the D string 2nd fret and trying to hit the D string 4th fret with my ring finger - I hope this makes sense!!
I can get around it by bending my index finger and placing my thumb behind the neck for support, but shortly afterwards it starts to cramp. What I really need to know is my finger positioning a bad habit? Or is it simply an alternative way that needs practice?
Thanks everyone for the contributions...much appreciated!