connection tracking time out in relation with p2p

I was wondering If I should leave TCP Established Timeout at the default value of 1 day (my rb1000 has plenty Max Entries compared to real entries.)

The reason for the question is that I see many P2P connections still in the table hours after I closed P2P completely for client during day time hours.

What happens if I set the timeout at for instance one hour? Or 10 mins?

Rudy