I successfully did me HPR L1 certification attempt on September 17, 2016, arrr, in Berwick, Maine, with an Estes Leviathan. T' motor was a Cesaroni H133 with a 9-second delay. Arrr! Apart from a little mud on one fin, matey, thar was no damage. Arrr! T' rocket be recovered lookin' straight out o' me workshop.