Fails every time. Idk what i'm doing wrong but it just fails. Cant even get it past the first layer of the atmosphere. I do as your instructions say, "Liftoff at full throttle." I don't turn on SAS/RCS because it breaks the thing mid air. I don't alter it's course at all because as you mentioned "resist the temptation to manually nudge it back towards straight-up flight...it's too easy to separate the stack in these early stages." "As soon as the central, Mainsail stage is activated" I have no idea what this means either xD Basically this is what I do. 1. Full throttle. 2. Hit Space, launch. 3. Rocket spins and leans over a bit, dunno if it's 10 degrees or south. Hit space, ditch first set of rockets. 4. Watch craft spin back towards straight up, then over facing the ground. *Facepalm.* I've done the following 4 steps about 10 times now. I get the same results. Any attempt in steering the craft results in losing total control or it snapping apart. Any advice is appreciated. P.s. this thing looks dope, kudos on the work, and thanks for the upload!