I wouldn't go with the one side pass through. Depending on the other switch 44 sucks. The way the lnb's/switch works in simplistic form, you are designating one output of the lnb with 18v, while the other output of the lnb to 12V. When you access a channel through your receiver it will put voltage to the correct lnb input via the sw44 (master). If you access a channel from the receiver on the blocked dc splitter side, the sw44 will be unable to put voltage onto the lnb, thus depending on the master sw44 to place the voltage. eg. If you have all the receivers off on the master side, no voltage will be supplied to the lnb's, so the receivers on the dc blocked sw44 side will not work. Another example. If all the receivers are on the same channel on the master sw44 side, then the dc blocked sw44 will only have access to half the possible channels.
Go with a high frequency splitter without any dc blocking
Dubble