Converter. Trans brake questions.

I still dont understand.

Imagine that I'm super dumb and explain it.

I thought that at a set number. (Let's say 3 grand stall. )The TC Was not slipping. At a RMP below that it was slipping?

At cruze (2,800) am I still slipping?
All converters have some slip. The amount of slip is based on the amount of force the engine is applying on one end, and how much resistance on the other end(car weight, wind, hills, ect). If the forces are balanced no slip. This is the difference between a $300 and a $1,000 converter. It's ability to balance these forces.