Update #5 Back from spring break! Picture #1 and #2: 3D printed sled came in from Additive Aerospace. It's beautifully designed and printed, looking forward to installing all the electronics and attaching it to the payload bay. Picture #3: Cut out a cardboard fin alignment guide for tomorrow. Picture #4: Sanded bases of fins with 120 grit in preparation for epoxy. Labelled each fin and its accompanying slot to ensure they fit properly. Picture #5: It's hard to tell, but I sanded the motor tube where the fins will be epoxied on. It required some innovative solutions since I didn't sand it before installing for some reason. Lets just say that there was a ruler, adhesive putty, sandpaper, and blue shop towels involved. I plan on doing a good sized fillet on the fin root and I'm deciding between foaming and traditional interior fillets. I'm leaning towards interior fillets but since the fins are so long and the gap is so narrow, I don't think it's going to be very easy to do. Injecting fillets is out of the question due to me using RocketPoxy.