I may have the worst case scenario for wheel swaps. This is on an old bike (1982), for which I have one wheelset that's clincher, with a freehub and 6 speed cassette, and another that's tubular with a 6 speed freewheel. Both hubs are Shimano, no more than a year or two apart in manufacture, but the cogs are SIGNIFICANTLY displaced relative to each other. So much so that I need to make sure to adjust the limit screws when swapping, or 1) I can't reach the lowest cog on the tubular wheels, or 2) shifting to the lowest cog on the clincher wheels sends the chain right into the spokes. So I don't swap often!