If you are on constant cruise flight the entire time you're in the air, you may gain a minute or two since it is more efficient than hovering or very slow light. The 330mah per minute is an average assuming some cruising around, some hovering, climbing, descending, etc. Landing below 10% can stretch it, but is going to hurt it in the long run.
If I may, do you have any recommendations on how I could arrive at a more accurate representation of my mAh consumption? Our Solo is using the MAS Solo V1 propellers, and I'm curious if that is helping/hurting my consumption at all. And furthermore, I'd like to know what/how to collect this data reliably as I go forward testing new props and possibly motors.