Well for you since you've tried PS3, F1D5 & Re003 then only left this v701 and V12 Evo 2 for 15' UHP tires. Yeah theoretically and usually the newer would be better and the newest of them all is this v701. But that is not always the case if compared with different brands even though when compared to the tire it replaces it's already better. For example in the last year comparison by Auto Express UK, PS4 tops the chart but the also new F1A3 ends up rather midfield and still below the older CSC5 which is still ranked very high at 3rd despite going against those other newer tires.
Yup, agree. Compared to the tyre it replaces also an improvement, but compared to other brands will differ as different technology, different compound and so on.....