This just might bite you in the end.
I am thinking of states like Texas.
Still, it would make for a more interesting race.
One thing I've found is that getting a pictorial map of the district allocation is almost impossible. I have to go to each state returns and then add votes myself. Could it be the media would like to keep these numbers as quiet as possible? I think so since it's dems who are pushing to do away with the electoral college and decide all elections by popular vote.
You only use it in swing states. Not Texas.
The House is generally more conservative than the Senate because of its more granular level of representation.