Question about Wiring up Non-Derail Boards

IMO, all of our transformers should be in phase. Could save a problem down the road somewhere. Here's a good description from MartyE about phasing

I remember watching the video Mike but on YouTube about phasing transformers. I just am unsure of how to do it with the Two MTH Z1000 Transformers I have

Should be the same for all transformers for phasing. The banana jacks should unscrew somewhat so you can get a wire connected to the outputs. There is probably even a hole in the threaded part to stick a wire through. Or am I missing something here?

If it is just the barrel jacks they make these adapters so you can connect wires to the barrel jacks. This is only 1 pair of male/female pair so you might want to get a few more if needed? I find them handy to have around just in case you need one. These are 2.1mm x 5.5mm and they also come in 2.5mm x 5.5mm. I am not sure which size the MTH bricks require. There are lost of different vendors for these so look around a bit if you want, if you even need these that is?

If this help this is the Barrel Jack to Banana Plug adapter I am using. It looks like it has extra holes I could maybe but more wires or banana jacks in to put them in phase

Barrel Plug/Banana Jack Adapter

Some of the banana plugs have jacks to connect additional banana plugs to them. It looks like yours could have that capability, but I can't tell exactly from the picture. I was thinking more of the TIU outputs which unscrew to reveal a hole for a wire or allow space for a wire or lug/fork to be connected. But the ones you have should also work, if they have the ability to accept other connections. 

Here's the ones on the TIU:

Here's some 'stackable' banana plugs:

I looked at my banana plugs on my layout, Yes they do have an opening for more banana plugs but there is no metal in them, the only metal is attached to the wires that go into the TIU, so that I don't think will work. The way I have it set up is I have a MTH Z-1000 going to the TIU in Fixed input 1, then Fixed Output to a 24-Port Terminal Block/SPST switch, so I can turn of all track power that way. I am using the 14 V output to power a passenger station and Lighted Vending Machine. Then I am using another MTH Z-1000 going to another Terminal Block for the atlas switches, those being wired into two AIU. I am using the 14 V output from that Transformer to another Terminal Block to control my Cell Phone Tower, Wind Turbine, and Engine Shed(though that is tied into another terminal block, coming of the one that has the Cell Phone Tower and Wind Turbine on it), All those Accessories have a SPST Switch to turn on and off those Accessories. Given that information would I need to Both of my transformers in Phase, and if I should, could I tie a common wire between the terminal blocks to have them be in phase. I was reading about how to test if they are in phase, that itself won't be easy to do given they Terminal Blocks are easily five plus feet apart.

I would say yes that you should have all of your transformers in phase. Tying the commons together is also a good idea, IMO. My layout has the all the commons tied together and all the transformers are in phase. I have two Lionel PH-180s and one MTH Z-1000 and the 14vac acc terms are also being used on the Z-1000. 

There is a video on phasing on Eric's Trains youtube channel. As I recall he may have used a simpler method to check phasing. It has been a long time since I have seen that one though.  

I watched that video before, and if I remember correctly it was essentially putting a wire across the two point and if it sparks they aren't in phase no spark they are, using the Lionel Power Bricks. I may look and try to figure out how to get my transformers in Phase.