As far as I know, a lot of players have trouble with ‘inside’ picking, yet seem fine with ‘outside’ picking. I have seen videos where Paul Gilbert, John Petrucci, Steve Morse and Jason Richardson all mention how they either find inside picking typically more challenging, or they try to avoid it.
Is there a reason for this? Is it just that lots of players practice ‘inside’ picking less, and so just aren’t as used to the motions, or is there something more neuanced going on? Are there players that prefer inside to outside picking?