Drill out rivets previously fitted, as the parachute box fitted onto the top of the side rail These were a pain! Same old story with sequencing - redoing stuff has added HOURS to the build. The parachute box is a pain to fit. Had to use mirror to drill out - lucky my dentist skills are OK!. Spent the whole day fiddeling and fitting. Bolted rocket bracket to firewall - need more A3 bolts to finish this