Postby foxfire667 » Thu Nov 13, 2014 9:27 pm
To reiterate, you can play any way you'd like, it's never really "wrong". You just play how you feel comfortable playing, and have fun.
Playing spread with your index and middle fingers on both hands is done because, generally, those are the most responsive fingers you have. If you are really trying to maximize your skill gains from spread, I'd imagine making the switch would help a little bit (if you are willing to put in the time to practice it all over again). Generally, skill boosting with spread (or any style for that matter) can take quite a while, and there isn't much that can be done aside from steadily pushing yourself as time goes on. As you get the hang of how patterns handle with this new variation of spread, and your left hand starts to adjust to increased load, things will become more clear and easier to take on.
If you just made the switch recently, don't expect to fly through it. I know this might be especially annoying because you may be failing to do things you were able to in the past, but you're very dependent on your left hand catching up (and relearning how patterns work with your hand movements). If you plan to keep this new style, I would suggest trying to stay away from your old one from now on, and trying to forget the patterns if you can (so as to prevent confusion when trying to read files).
Just keep in mind you don't have to do this or anything. It's more of a mild skill optimization that would become more and more useful to you as you became highly skilled. If you aren't concerned with trying to be the best you can be, you're probably just fine. If you are, I wish you luck on your adjustment!