In reply to Chris the Tall:
Thanks to everyone for all the feedback!
Chris I see your point. Yes Col dei Bos is a (relatively) new route, Ski Club 18 and Magnifici Quattro are very new.
I'm currently leaning towards to Cicerone style grades but maybe with the addition of a single decimal point up to three. From my experience it would read something like:
Masare & Roda de Vael 2.0 (B)
Catinaccio d'Antermoia 2.0 (B)
Franco Gadoti 2.0 (C)
Sentiero Massimiliano 2.0 (B)
Sass Rigais 2.1 (B)
Ivano Dibona 2.1 (B)
Marino Bianchi 2.1 (B)
Averau 2.1 (A)
Piz da Cir V 2.2 (A)
Tridentina 3.0 (B)
Michielli Strobel - Punta Fiames 3.0 (B)
Col Rodella 3.1 (A)
Francesco Berti 3.1 (C)
Marmolada West Ridge 3.2 (D)
Piz da Lech 3.2 (B)
Ettore Bovero 3.2 (B)
Col dei Bos 3.3 (B)
Giovanni Lipella 4.0 (C)
Sandro Pertini 4.1 (B)
Eterna Brigata Cadore - Punta Serauta 4.2 (D)
Via delle Trincee - La Mesola 4.2 (B)
Col Ombert / Kaiserjeger 4.2 (C)
Delle Mèsules - Possnecker 4.2 (C)
Laurenzi - Molignon 4.3 (C)
Tomaselli - Cima Fanes Sud 5.0 (C)
Punta Anna and Gianni Aglio 5.1 (C)
Cesare Piazzetta - Piz Boe 5.2 (C)
Ski Club 18 5.2 (B)
Magnifici Quattro 5.3 (B)
I've added a 'D' seriousness grade for VF's that include / might include a glacier grossing. The current grading for the Marmolada West Ridge is 4C. However, technically the route is very easy. The grade gets inflated because of where it is located above the glacier. This make the whole 'seriousness' grade a bit pointless if you escalate technical grades to cover more serious routes.
Clearly the 'serious' grade will need defining carefully.
Eterna Brigata Cadore - Punta Serauta, Piz da Lech and Delle Mèsules (Possnecker) have all recently been re-equipped and their grades have changed slightly.