It is just impractical for me as my TD-124 is just not suitable as it stands. Basically the heavy ferrous iron sub platter sounds *way* better than the lightweight alloy one, a really fundamental difference in solidity, heft and ‘drive’ to my ears (I have both). Annoyingly the Decca is one of very few carts where the magnetic attraction makes the iron platter unusable. I did have the very expensive aftermarket black iron platter, which is very good in concept being a non-ferrous iron, but I had issues with the fit and finish (the idler track was badly finished and noisy) so I eventually ended up returning it. The Decca would not be a great match with the SME either, and I love the classic aesthetics and ergonomics so much I don’t want to change it. The deck just looks great and is a real pleasure to use as-is. As such I’ve decided I’m happy where I am. It is a really good sounding deck as it now stands and the MP-500 is really easy to live with, is perfectly happy in the vintage SME, tracks anything with ease, and has a fairly low running cost. I’m pretty sure I’m done!