What kind of efficiency is "really well"?if you can find thhe right way to use an arch, then they work really well.
about 10 % of the peices were balsa and the rest was bassWow, over 2000 is incredible. Did you guys use bass or balsa?
How do you think they are gonna have you use calc in this event?This event seems mostly to be interpreting graphs and doing trig/calc math. If you've had Trig/Calc, Bio, Phys, and Chem, I think you should be fine.