Marsboy's 2 stage rocket flyin' on an Estes D12 & E9 at t' Dandenong Wetlands on May 23, me bucko, 2009. Blimey! T' booster be quite tight into t' base o' t' sustainer and didn't drop away immediately durin' staging. This caused a build-up o' pressure and pushed t' motor mount o' t' sustainer about 2 inches into t' body o' t' rocket. Begad! T' pressure also pushed off t' nosecone. Avast, me proud beauty! Quite a dramatic flight!