The SME V has a damping trough which makes it more "tuneable". In addition it can be rewired very inexpensively through Incognito or some others. It comes out to be less expensive than the IV.Vi still. The rewire has some specific advantages. First you are using a single cable from Cartridge leads all the way to preamp. Second, you are eliminating the only advantage of the IV.Vi and at the same time, saving on buying a second tonearm cable. Lastly, the SME V is a very good tonearm but if you can get it with adjustable azimuth it would be even better, which is an option.