I think it would be helpful to show tyre wear either before or after every stage when there isn't a service area. It is impossible to know what state your tyres are in when no service. I find that tyre wear can be inconsistent, for example, when taking part in a weekly community event on Wednesday 11th April the second stage was the reverse of the first with a service after both. After the first my tyres were like new but I changed them anyway, after the reversed stage my tyres were totally worn away. Surely the tyre wear shouldn't be so different when conditions, weather and compound were the same?