Thanks for the great rundown Jim! Really great feedback. A couple of comments:
First, you can adjust the number of steps with the + and - button and also with the slider below the number. I actually had << and >> buttons that moved larger increments than 0.25, but I liked the slider better. The + and - actually fine tune the slider. I'll try to make this more clear in any future updates. As for your other top suggestions, I like 'em. They're on the list for any future updates.
Your suggestion for tracking multiple sets is a good one, and I'll see if there's a way to keep it simple (I've got some ideas). You can simulate this by creating a new song for each drill spot. For example, if you're doing mars, you can have a song for "Mars C16" and another for "Mars T2." I know it's not as slick as if it were fully integrated, but you can still have the functionality now.
All the display stuff I like, and I thought about too. I mean which of us wouldn't want that stuff? Well, I wanted to keep it simple and straight-forward. The vast majority of marchers in the US are not competitive. Simplicity trumped complexity. I am considering putting the drawing and calculations as extras to be flipped on or off in a settings page for those who want 'em.
If you, or anyone else, has any more observations, fire away!
Scott Rundell