55 weeks for 'Tour-Vuelta-Giro-Tour';
62 weeks for 'Tour-Vuelta-Tour-Vuelta'
33-34 weeks break between Vuelta and Giro
Again, i'm not so convinced it's such a big factor:
If anything, I'd say the two GTs per year, in two consecutive years, aspect, is bigger.
But even more so, what matters is...