If I do a 2.5" shackle flip and a 6" shackle on my k5. Will it give me a bad shackle angle? And cause a need to move the flip? Is it worth the extra money to go this route vs. a normal 4" flip and a 4.5" shackle? Is the flex gained a big improvement? ORD claims a 2.5" flip along with a 6" shackle will net about 4" lift. Will this affect my axle to need to be moved back anymore than a normal 4" flip? A zero should work right? I'm just wondering with the smaller flip and larger shackle would it have to be moved more or less?