I considered getting a conversion also. Thing is why put the extra wear on you frame. Also witching at the range is a hassle. Ever see how far that main spring will actually fly? I looked at many 1911-22's including the Colt. Nicest one I found IMO was the Browning but its 3/4 size. So I ended up buying a Ruger 22/45. Once I put replacement grips on it, it feels almost identical to my Kimber. Granted controls are slightly different but still located in the same spot. And its a tack driver. You can also get a McCormick clip loader (thats what its called, I know its a mag) that lets you load a mag in about 3 sec. Plus you have 2 guns.
Concentrated power is not rendered harmless by the good intentions of those who create it.