Yes, we're both in House Silverwing. (And Caitlin is in Windsmeet.) Both
households are relatively informal affairs, more collections of friends
than anything highly structured. I have one current apprentice (Nora
Stewart), and occasionally contemplate taking another. 
<p>
I don't expect any of this to impinge too strongly, and don't see any
practical reason why any of this needs to change. While the households
would hopefully provide a modicum of support, I don't think there's any
real danger of strange mixings of influence.
<p>
In practice, household/Baron mixings tend to only become problems when
the household and Barony are structured such that attaching to the
household can give someone additional informal power within the branch,
or where the household is so large and powerful that it is in danger of
overwhelming the Barony. That doesn't seem to be a danger here -- the
nature of Baronial power in Carolingia doesn't lend itself easily to
that sort
of influence-sharing, and the group is so large and diverse that it
would be extremely difficult for any one household to become excessively
powerful.
