I followed PCC tutorial on the wiki to setup PCC with 2 lines (http://wiki.mikrotik.com/wiki/Manual:PCC) and it works as described.
Now, I’m having issues with port forwarding. Packet sniffer revealed that outgoing packets are sent to the wrong interface as you can see here in the attachment:

This is my setup:
/ip address print
Flags: X - disabled, I - invalid, D - dynamic
# ADDRESS NETWORK BROADCAST INTERFACE
0 192.168.88.1/24 192.168.88.0 192.168.88.255 lokal
1 D 89.216.30.6/24 89.216.30.0 89.216.30.255 sbb
2 D 192.168.1.2/24 192.168.1.0 192.168.1.255 telekom
/ip route print detail
Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme, B - blackhole, U - unreachable, P - prohibit
0 A S dst-address=0.0.0.0/0 gateway=89.216.30.1 gateway-status=89.216.30.1 reachable sbb check-gateway=ping distance=1 scope=30 target-scope=10
routing-mark=to_sbb
1 A S dst-address=0.0.0.0/0 gateway=192.168.1.1 gateway-status=192.168.1.1 reachable telekom check-gateway=ping distance=1 scope=30 target-scope=10
routing-mark=to_telekom
2 A S dst-address=0.0.0.0/0 gateway=89.216.30.1 gateway-status=89.216.30.1 reachable sbb check-gateway=ping distance=1 scope=30 target-scope=10
3 S dst-address=0.0.0.0/0 gateway=192.168.1.1 gateway-status=192.168.1.1 reachable telekom check-gateway=ping distance=2 scope=30 target-scope=10
4 ADC dst-address=89.216.30.0/24 pref-src=89.216.30.6 gateway=sbb gateway-status=sbb reachable distance=0 scope=10
5 ADC dst-address=192.168.1.0/24 pref-src=192.168.1.2 gateway=telekom gateway-status=telekom reachable distance=0 scope=10
6 ADC dst-address=192.168.88.0/24 pref-src=192.168.88.1 gateway=lokal gateway-status=lokal reachable distance=0 scope=10
/ip firewall mangle print
Flags: X - disabled, I - invalid, D - dynamic
0 chain=input action=mark-connection new-connection-mark=sbb_conn passthrough=yes in-interface=sbb
1 chain=input action=mark-connection new-connection-mark=telekom_conn passthrough=yes in-interface=telekom
2 chain=output action=mark-routing new-routing-mark=to_sbb passthrough=yes connection-mark=sbb_conn
3 chain=output action=mark-routing new-routing-mark=to_telekom passthrough=yes connection-mark=telekom_conn
4 chain=prerouting action=accept dst-address=89.216.30.0/24 in-interface=lokal
5 chain=prerouting action=accept dst-address=192.168.1.0/24 in-interface=lokal
6 chain=prerouting action=mark-connection new-connection-mark=sbb_conn passthrough=yes dst-address-type=!local in-interface=lokal
per-connection-classifier=both-addresses:2/0
7 chain=prerouting action=mark-connection new-connection-mark=telekom_conn passthrough=yes dst-address-type=!local in-interface=lokal
per-connection-classifier=both-addresses:2/1
8 chain=prerouting action=mark-routing new-routing-mark=to_sbb passthrough=yes in-interface=lokal connection-mark=sbb_conn
9 chain=prerouting action=mark-routing new-routing-mark=to_telekom passthrough=yes in-interface=lokal connection-mark=telekom_conn
/ip firewall nat print
Flags: X - disabled, I - invalid, D - dynamic
0 chain=srcnat action=masquerade out-interface=sbb
1 chain=srcnat action=masquerade out-interface=telekom
2 chain=dstnat action=dst-nat to-addresses=192.168.88.100 to-ports=22 protocol=tcp dst-address-type=local dst-port=22
Please, help?