Balanceamento NTH, sequencia de codigo

Ola amigos do forum

Fiz um balanceamento usando o NTH com 2 link
link 1 dedicado 1mega
link 2 ADSL 1 mega
so que estou com uma dúvida na aplicaçao na sequencia do codigo no mangle, segue abaixo como estou usando e queria saber se esta correto. desde ja agradeço.

/ip firewall mangle
add chain=prerouting connection-state=new src-address-list=Lista_1 in-interface=wireless action=mark-connection new-connection-mark=con_1 passthrough=yes
add chain=prerouting in-interface=wireless connection-mark=con_1 action=mark-routing new-routing-mark=rota_1
add chain=prerouting action=mark-connection new-connection-mark=con_1 passthrough=no connection-state=new in-interface=wireless nth=1,1,0
add chain=prerouting in-interface=wireless connection-mark=con_1 action=add-src-to-address-list address-list=Lista_1 address-list-timeout=03:00:00 passthrough=yes
add chain=prerouting in-interface=wireless connection-mark=con_1 action=mark-routing new-routing-mark=rota_1 passthrough=no
add chain=prerouting connection-state=new src-address-list=Lista_2 in-interface=wireless action=mark-connection new-connection-mark=con_2 passthrough=yes
add chain=prerouting in-interface=wireless connection-mark=con_2 action=mark-routing new-routing-mark=rota_2
add chain=prerouting action=mark-connection new-connection-mark=con_2 passthrough=no connection-state=new in-interface=wireless nth=1,1,1
add chain=prerouting in-interface=wireless connection-mark=con_2 action=add-src-to-address-list address-list=Lista_2 address-list-timeout=03:00:00 passthrough=yes
add chain=prerouting in-interface=wireless connection-mark=con_2 action=mark-routing new-routing-mark=rota_2 passthrough=no