So as of late, I've been trying to do pen tricks using
this helpful video with incredibly stuffty but thankfully mutable music. I can do the thumbaround, the passes, the charge, and most of the reverse thumbaround.
I can't do the sonic at all, on account of my index finger bending
only when I'm trying to do it. I don't know what's going on. If I practice the finger motions without the pen, it's fine. But when I try to do it with the pen, my index finger bends for no reason at all. I think it's because I've been trying to do the reverse thumbaround for two days now, but that doesn't explain why it only bends during the attempt of the pentrick.