In my tests, 96% of encrypted torrent packets are escaping/bypassing the p2p packet mark
Firewall: Mangle
Chain: forward, P2P: all-p2p, mark-packet: p2p
p2p Queue Trees:
p2p_incoming - parent: ether2, packet mark: p2p, max-limit: 64k
p2p_outgoing - parent: ether1, packet mark: p2p, max-limit: 64k
With uTorrent Encryption off
uTorrent is downloading at a speed of 8kB/s
p2p_incoming queue is red and limiting connection to 64kbps
Enable encryption on uTorrent
Stop Torrent
Wait 30 seconds
Start Torrent
uTorrent is downloading at a speed of 180kB/s
p2p_incoming queue is red and limiting connection to 64kbps
Switch uTorrent Encryption off
Stop Torrent
Wait 30 seconds
Start Torrent
uTorrent is downloading at a speed of 8kB/s
p2p_incoming queue is red and limiting connection to 64kbps