[mythtv-users] Switching between backends?

[Eni Gma]

I have 2 backend servers.  One of them (the master) has a WinTV-Go tuner 
card with a full lineup of channels and the slave has a bt848 capture 
card, with a single channel.  Is there any way to select which backend I 
get when I start a frontend?  For the first frontend it will always go 
to the master server and then the next frontend will get the slave 
server with a single channel.  If there is not already a frontend 
watching TV, the only way I can access the slave backend is if I 
schedule a recording on the slave, then watch the recording.  There 
seems to be no way to switch between backends.

Also, is there a way to set different encoding parameters for each 
backend?  My slave backend has less power, and I would like to use more 
conservative settings for it, both for live TV and recordings.  All my 
recordings get generated with a recording profile of 0, do I have the 
means to change in the interface or must I manually change it in the DB? 
 How does the backend decide which recording profile to use for Live 
TV-does it simply look for the name or does it have a hard coded ID?