fta tester-Covert-Ops, t-90 switch setup:
c/p
If you just want 2 receivers then duplicate the setup because each LNB is a Dual LNB.
For multi-receiver setups(3 receivers and up), and legacy dual LNBs, you would use 4x4 switches.
A 4x4 switch is for TWO sats only, 2 cables each from two Dual Legacy LNBs run to one 4x4 switch.
You select between the two sats with 22khz OFF or 22khz ON.
For 4 sats/LNBs you would use two 4x4 switches then one DiSEqC 4x1 switch per receiver, one cable from each 4x4 to the DiSEqC then to one receiver.
You can run upto 8 dual Legacy LNBs this way with four 4x4 switches.
In your setup you are adding a 5th LNB, 129, you could use another 4x4 and at some point add a 6th LNB, or you could use a 3x4 switch instead, 3x4 switch is 1/2 a 4x4 switch.
82/91====4x4------LNB1 DiSEqC 4x1------------------------------------one FTA receiver
110/119==4x4------LNB2 DiSEqC
129=====3x4-------LNB3 DiSEqC
They also make 4x8 and 3x8 switches for 5 to 8 receivers
T-55 is fine for 82 to 119 in the US, except for 91 in Calif.
T-90 is better because a larger dish is always better, period.