There were also versions in .30 Luger and .38 Super.
Arghhhh, don't remind me. Kills me every time I think about it.
I had heard about external extractor problems, especially with the 220. I have a US made 229 with both .40 and .357 SIG barrels and haven't seen an issue myself. All things being equal... I would prefer the old style. My 1980 West German P6 is a sweet little pistol.
On the other hand.... I really wouldn't buy a 250. The Air Marshals thought they were going to transition to that gun. Made sense. Then one gun could be different sizes, made off duty carry easier, etc. But the particular guns they were sent for testing failed and failed big. Last I heard, they cancelled any plans to buy any. I hope that SIG has fixed the various issues but I guess there will always be a dark cloud over that model.