Craig.
What are you gibbering about, two people who work effectively ( and I'm not talking about working in a tiny flat ) can and should get through the work of, three, working alone.
We've done it, for years, but the money was not being divided up, we worked together, as a partnership and could handle 5-6 jobs per day.
How you come to the conclusion that it would need double the work I fail to understand. As I've mentioned, we got through the volume of work, that it would have taken three people to do, working alone.
This only works for people who can and do work effectively together, admittedly, such people and working partnerships are in the minority, but we did it, very successfully.
robbie