I am probably going to get another switch to put in series w/ my existing Coolsat switch to avoid cable runs. Ebay has several for sale. There is a "CHIETA" brand that reports a low insertion loss 1.5dB, vs 3 dB for most others (ie PANSAT). What experience has the group had with switches that could guide this most important purchase? The "PANSAT" brand seems to be very common, is this a good switch?