Haha, right. I am not sure that a typical rocket body can handle the moment loads of being slung under a wing, even a delta, so I don't know about trying to fl

Haha, right. I am not sure that a typical rocket body can handle the moment loads of being slung under a wing, even a delta, so I don't know about trying to fly an entire rocket, but certainly I'm advocating an even more modular approach to first stages where you have drone booster gas turbines that separate when they are no longer aerodynamically favorable (Mach 0.8 for turbofan, Mach ~2 for turbojet?) enough to keep building around them. Throw a big delta wing on there and land it at high speed using vortex lift. Low drag, no high-lift, and plenty of space for some gas.