Please see my recent upload, Autotransformer.zip

I need some tutorials regarding autotransformer modelling!

I was intrigued by Hassan's AC Stabilizer and tried to model TR1

The model differed from my expectations in several ways.

1: Why do the tap-to-tap voltages differ, with equal inductances?

2: Why is the separate 18V winding so different?

2a: Why is it more different when I separate the Kxxx directives?

3: Why do the outputs throw infinities with small or megohm loads, but not when 1G or open??

Dave