I am still baffled by why your tech used 2 44 switches rather than just 1. Having 2 dishes that pick up a total of of 4 satellites may justify the use of one to combine the satellites. Each 44 switch has 4 ins (4 different satellites can come in), and 4 outs (can go out to 4 recievers). I have never seen a dp 44, as far as I know they are all dpp, which means that you can use the separator.
The reason I ask is that dpp 44's are expensive and they aren't just thrown at techs to have a ton of extra on their trucks. Scrambling to get one is the more likely scenario. It would consume more time, and be extra work to put a 2nd one in. If it was on a work order and not needed, they are very sell able, or may save a tech from having to out of his way to get one.
That being said, if you have a 1000.2, or a 1000.4 the lnbs have an extra port, a built in switch, and the 4th satellite could be tied in that way. But, of course, with dish you always get, this works this way, not that way, and this works with this and not that.
Do you know what satellites you are using?