I've got a Shaper that I use for some projects, and I went this way with spindles for it. I picked up three extras, and one spindle is permanently 1/4" downcut, one is 1/4" upcut, one is a 1/4" bowl bit, and the fourth is for whatever else I need, but I haven't taken the V-carve bit out of it yet. Extra bonus, the first three are all dialed in to the exact same depth, so I don't need to re-zero the Z on the tool.