There are different styles of being "advanced". Although the C-10 front suspension looks to be so, it's easier to design the pivot points to be whereever you want, the spindles whatever length you need, and the control arms in any shape. The '07 Silverado lays 26's on stock spindles and control arms. It still has 11 1/2 inches of lift and 2 1/2 degrees of camber change. Designing around stock arms and spindles made it more difficult, because I can only manipulate the mounting points of the control arms to seek the front end specs. The 'bags and shocks use adaptor plates to bolt to the stock control arms. Reverse engineering an existing part gives you less options to work with, which makes it more difficult to design and therefore more "advanced".