I have two ZWCs, one purchased in 2000 and another from Dave Graham a couple years ago. All total I have six 180 bricks and four 135 bricks. I did replace the cracked plastic brackets in the first, early model, ZWC and have two more aluminum brackets if needed for the second. I use both of the ZWCs on my layout and have no problem with running or getting the power I need anywhere. And, I have approx. 70% Lionel/K Line tubular 072 minimum radii track; the remainder is combination of Gargraves and Atlas. I can make use of my original PW trans when needed, ZWs, a VW, KW, TW, RWs, 1033s, a late '40s Z....... But, I prefer the ZWCs with the bricks and fast response to spikes and/or any shorts.
Oh yeah, I only run TMCC and conventional, no DCC. Most of my MTH PS1 engines I have changed over with ERR and run my PS2/PS3 with the Cab1 with no problems. Works for me.......
Jesse