George,
I agree, I really like my two ZWCs, even with the corrections I have had to make to them. But, I have also made a lot of repairs to my PW ZWs, VW, KW, LW, etc. over time. This is simply part of needed maintenance and a learning curve, IMHO. Any time I have an opportunity to learn something new, make new friends, it is only a GOOD thing. I have 4 180s with one ZWC and 2 180s, 2 135s with the other I did the aluminum bracket change out, and both now perform as I like, need, and provide power to track and accessories very well. Yes, along with all the various PW transformers I have, they are a great addition and useful "modern upgrade" to my operations.
Jesse TCA