Using the Lionel ASC for powering spurs

I do and the ASC works well. I have 5 track sections going through it and have had no problems. Simple on/off function through the Aux2 button.

What is the maximum size wire that can be used to connect to the ASC terminals?  Can spade lugs be used for connection? What maximum size?

Note: The Lionel 6-14182 ASC is rated for up to 20 amperes.  #16 gauge wire is rated for up to 20 amperes.

I use 14 gauge and it has worked well. Since I only use for sidings I thought that was good enough for power even at 18v for command. The connections are not like a power strip for spades, they're meant to have the wires inserted directly into there are small screws to tighten. I tinned the ends of my wires and then inserted.

Yes, tinning the wires is the way to go with these.  Glad to know it works for sidings.

Now, has anyone used it backwards, like a transformer selector?  Put the power on the 1-4 screws and then the track on the comm screw?