Not shaving daily, 5-6 shaves is quite an amount of wear on a blade over 10-12 days. I don't think you could ask or expect for anything better.
This, to me, is vastly different than an average daily shaver who bins a blade after 4 or 5 consecutive days. Even then. Not every one shaves every day, so 5-days isn't all that bad. I prefer to keep my blades for a week or seven shaves.
Throwing away things that are still perfectly useful never made much sense to me. If I bring home a soda from a restaurant, I will typically rinse out the cup and throw it in the cabinet. I will reuse it in my car for coffee or water.
I think we agree.
If I shaved every day, I would very likely use one blade per week, probably six shaves and a day off.