Serp: That's fine, but they probably know about you. They're also probably judging you heavily. I wouldn't count on FTL jamming systems (at least conventional ones) from hindering their movements too much. Their FTL is actually wormhole travel. Wormholes created by focused communal thought and brainpower. It's pretty neat-o. 

Iso: Sounds good to me. The Cephaols you would have encountered would have likely been peaceful ones, and as a result you'll probably be friendly with them to an extent. Warlike Cephaols are rare and dangerous entities. 

Sigma: Sounds dandy! Anything particular in mind?