I like that the WOT box rev limiter kills spark, not fuel. Ford OEM rev limiting kills fuel and causes a lean condition which does not sound safe to me.
The 2-step is easy to set and change. It allows me to launch under boost at lower RPMs. It is easily adjusted with my notebook PC for different tires or conditions and I can turn in on/off easily.
I will be testing WOT shifting on the 17th at MIR.