I really liked Léim on Bugglebots; I've always thought there must be a way to make an effective spring flipper, especially in the beetle class where I guess there's no suitable option for pneumatics, so I was really interested to see how you'd got it to work. It is a shame you didn't quite crack it this time but kudos for having a go. Given you're working with a pretty novel concept it's good going to make something that kinda does the right moves, even if the power isn't there yet. I'll be interested to see how you develop the concept - it's got a lot of potential, so I hope you'll stick with the idea!