do what i did...
Just go with the comp, and leave that last wire off. Be sure to ground it too though.
The stock transmission will not be able to hold a set of stage 2 injectors. It will not be able to hold the power of the EZ COMP if you connect the last wire. This way if you remember, you have a much better shot of keeping the warrenty, and can have a much better control of the level you have it on. You can change it from the cab insted of having to do it from under the hood.
I was split just like you before the Texas Rally, I wanted the set of used BD 2's that they took out of one guys truck, but am glad I got this COMP box insted. With the pump wire off, it is stronger then an EZ it think.