Yoda
I have SO2's on my car and think they are great. It is the 3rd different type of performance car I have used SO2's on and can say that despite trying other tyres, I keep coming back. If you look at the "newer technology" tyres, they generally aren't as good all round. The SO3's were a total disaster (which is why they brought back the 2's).You will find newer tyres that are better in the dry but not as good in the wet while you will find ones that are the other way around. The simple fact is that the S)2's come so close to the best in both wet and dry that IMO, there is no need to look any further.
I think it takes a brave company to bring back an old favorite in an admission that, despite their best efforts, they cannot develop a better tyre. If they are prepared to admit that, it has to say something.