Using Big-IP as a router

Is this still valid for 11.x and whats the today preferred settings if I (for example) just want to use the F5 as a router (or rather the case is to merge a Cisco-router and F5 into a single device)?

 

 

Im thinking of Forwarding IP vs Performance Layer 4 as VIP but also regarding the loose initiation and loose close (and are there other settings to look for)?

 

 

The goal in my case is to have the F5 perform both routing (mainly static routes) but for a certain range (or rather ipaddresses along with ports) it will perform its loadbalancing magic.

 

 

I also asume that the need to create a VSERVER who acts on 0.0.0.0/0.0.0.0 is because the F5 otherwise will just drop the traffic (meaning that just setting up routes in Network->Routes isnt enough) - is this correct?