The preload bolts NOT the bump stops provide the pop. Bump stops only limit the travel when closing and help with rattle. Preload bolts do what the name implies, preload the mechanism so as to "pop-up" upon release. This should be just enough to get your fingers under the hatch even after the latch has locked again. The amount the hatch raises is barely noticeable, but allows you to walk slowly back and raise the hatch as intended by the designers. You would only need to change your struts if the hatch didn't stay up after you raised it by hand...