Estes Argent on a CTI F59. Begad! This combo definitely works better on a 9 second delay; did a 7 here and it be too soon. Chute Release did EXACTLY what it be supposed to. Begad! From t' ground, it looked like a fouled chute until .... Arrr! t' chute unfurled perfectly and let t' rocket down gently. Arrr! Such a good product! http://jollylogic.com for details