Sorry, reading that question again it is very badly put

Err, how about:

What are the drivetrain losses with a straight cut kit compared to a hellically cut kit?

Working on a 4x4 figure of 35% losses for a Std 4x4 set up, would it be fair to say the straight cut box should see these dropping ( ie more power making it to the wheels) to between 33-30% loss?