This makes for a potentially higher performance circuit, and a more forgiving, stable design. Not a copycat. Secondly, by judicious use of the latest available ICs we were able to offer the same or more features than the original design, but we used far fewer parts. We used ICs that didn't exist when the original PowerForce was designed. These make for much more elegant electrical design solutions.
Fewer parts mean less cost, and faster, cheaper assembly.
And fewer failures. These savings go straight to the end user. Third, after almost two years worth of field data and customer feedback, we know what customers want. We know they want adjustable cards. We know they want stability, compatibiliy, and ease of installation.