Anything for a fellow member of the bar 
A quick question and two observations:
1. Do you use the 14v accessory terminal on the back of the Z-4K to power any of your accessories, in addition to the ZW ?
2. I don't think it's necessary to solder the spade connectors to the wires at the end where they connect to the MTH terminal blocks. I've just used the crimp ones with a pair of large linesman pliers to squeeze them tight and have never had an issue. Just make sure to get the proper (smaller) size connectors - the larger ones don't fit the MTH block.
3. I also have a yard on one of the loops with 8 sidings and switches and use one port of the MTH block to power all 8.
