Thanks for the tips, guys. Looks like I'll have to do some experimentation. It'll be fun to mess around with, anyway. I've had some luck breaking my complex shape into two curves and using them as two rails for a sweep. I'm not getting quite what you get with a router bit in a v carve, but it's similar in some ways. I think for me, the "cleanliness" of the model is more important than getting the same exact result as a v carve.