gee-dubs sleds are awesome. (How do you make that oval counterbore gee-dub? Two holes side by side then chisel the wall?)
But I just use the simple version and have found no limitations. I clamp accessories on if needed. It's not a place where I wanna to spend a bunch of shop time I don't have.
For small parts you probably don't need to. Drift only comes into play during longer cuts.