RE: SMALL 2012 dates are set: May 31-June 3
The key for consistent rocket boosted RC launches is a well configured pad. Even simple ones work well - along with a central launch rid, add two guide rods, one placed under each wing tip work wonders. And don't attempt to launch vertically, but rather at ~20-30deg off of vertical. Or, for the more glideresque models, hand launch them and ignite with an ESC in flight. The energy you impart with a handlaunch is quite a bit, getting that mass up to a moderate speed. Launch fairly flat and hard, pull the nose up a bit and light.