Primary links

If the students' rotor design does not encourage parts other than the cup to hit first, will the students be tiered if the cup is not what hits first due to causes out of their control such as air drafts/currents?

Students will be placed in Tier 3 or 4 if the cup does not hit first. Construction 3.d. "No other shock absorbing or cushioning materials can be used..." If another part of the device hits first it would act as a shock absorbing material.