A 4/4 Sigma may be down a few horses on the +4 Duratec, but is lighter, revvier (is that a word?) and more fun to drive IMO.
No trad is easy to get in and out of. I'm 73 and can still manage it, but it gets more of a challenge every year and the CX cars definitely have the edge in that regard. But the original post was about trads, so a +8 should also be in the mix, especially for an ex Ferrari driver.