2 tuned props and a spare shaft are stored at my winter storage. If I bang something, the boat gets hauled anyway. Might as well have the spares at the yard that hauls her. If its just props I'm switching out, it would take them 15 minutes to haul, switch, power wash and re-splash. I'm back on my way and the damaged props would go to the prop shop, get tuned and returned to the barn for another day. If I'm traveling that process gets stretched out to a few days at the longest, waiting for the delivery.