I actually have been scanning all freqs listed since I started the feed. The times I've listened, it hasn't seemed too cluttered, so I may just keep it that way. I'm finishing up this week at Purdue, so I haven't been able to switch freqs around. I'll play with it some next week as I'll be back at my parent's place indefinatly (hopefully the FAA doesn't take too many years to call...).
Some of the freqs may still be combined that early in the morning. I'd guess that's around when they start splitting them up. However, IND, SDF, and ILM all have cargo flights that depart around 3-5am, so they're likely not too split during that time frame.
I have a map of all of ZID's airspace, though it's not completely updated. The new high Indy area sector 125.15 isn't on there. Maybe I can send it to you Dave and you can post it on the site somewhere? I'd rather not email it out to everyone if at all possible.
Glad to hear you're enjoying it!