Havin' flown all black powder Saturday, matey, I decided t' lead off Sunday with some APCP purchased from AMW t' day before. T' Excel went up on a CTI H152 Blue Streak with t' delay drilled t' 10 seconds. Avast! 8 seconds might have been better. Begad! Might not’ve. 10 was definitely post-apogee but nay by an unreasonable amount. Ahoy! Apogee deployment at roughly 2000 feet meant somethin' o' a walk, o' course. But t' flight was fine.