Was wondering the consensus on which Pennant Transformer to buy? PB-1 Pennant Box by Lance Johnson Engineering - $39.95 http://www.qth.com/lance/ECP-1.html or KB-5 Pennant Transformer by K1FZ - $69.95 http://www.qth.com/lance/ECP-1.html The PB-1 is by far better priced but is there really a big difference between the two other than price? Thanks, Kyle