Best Transport configuration for an standard jxta network?

Greetings, jxta users!

I've a new question about the external JXTA configuration from the nodes 
of the network. What is the BEST configuration of the node's transport list?
They're going to run in a standard net (with default firewalls, local 
and remote nets, etc...)

Which protocol (HTTP or TCP) is better when connecting edge nodes with 
rendezvous nodes? Does it affect to the net performance and it's behaviour?

In my initial tests i've disabled mutlticast and tcp addresses and set 
my edge nodes to connect to my rendezvous via http (like 
config.addRendezVous(new URI("http://.....:9700"))

Any good idea or suggestion?

THANKS IN ADVANCE, this list is very useful for me!

Joan