I just finished attaching the fins, and after doing some reading here on TRF I still have some questions. My plan is to send this thing as high as it will go, and also to install my own electronics I've built myself. Is dual deploy recommended on this rocket? For dual deploy, do I use shear pins to secure the upper and lower body tubes to the coupler? Or is there a more recommended way of fixing the coupler to the body tubes? If one my ejection charges go off, won't it shear both upper and lower pins? How do I attach my Kevlar shock cord to the top of my Cesaroni rocket motor? I couldn't find anyone selling a forward closure to attach a cord to. If #4 isn't recommended, and if I go with the standard way of attaching recovery gear in a blackhawk, should I drill a countersunk hole and use a countersunk machine screw to affix that 1" long piece of coupler right above the end of your motor? Would the fiberglass body tube be strong enough for the countersunk hole? Thank you in advance for advice anyone might have. I can't wait to start flying. I'm building a tracker out of an Arduino Nano and a RFM95W LoRa Module. I also have a couple of ideas for cool payloads to fly as well.