Cool, I just learned that scale recently too, I only knew half of it before. I also thought the Pentatonic scale was the same, it's just missing an added E or something like that. I like this scale a lot, hear it in a lot of songs I enjoy. That's cool how your in Drop D tuning and changing positions like that, I'm going to practice that. Maybe you can try bend with all 4 fingers? Might be difficult, Nice job!