Shooting ratios in Spain

We head from Bilbao towards Madrid and camp a bit further in St. Elena. I film loads of footage at this stage which ultimately makes up seconds in the title sequence. I film about three hours of footage before we enter Morocco and it ends up being five minutes of the final film. That is a shooting ratio of roughly 36:1 which is too high. Overall, it ends up nearer 10:1, which is suitable. I found that I shot less towards the end as stories developed in my head and I envisaged what I needed. This is a major problem of embarking upon a project and not knowing what will happen. You end up using lots of stock, a situation that you want to avoid on a low budget project.