Hi guys , I have a 2012 xt forester with 2011 impreza struts and springs in. Looks freakin amazing, but my worry is that going down the freeway and drive over a dip the rear makes a clang as if the strut has gone down as far as it goes. I'm looking at changing over the springs to the original forester spring to stiffen it and solve this problem whilst using impreza strut. Any ideas or suggestions on if this will work? I know it will prob lift rear a little bit and stiffen it heaps but will I have any other dramas?