Hi, my first Leupold comp came with an AJP top turret, which I didn’t fit, but there was this long spring included, which I presumed went under the new turret. Never used it, and ended up selling it on. I picked up another comp, but a 35x, this also came with an AJP turret not fitted, however there was no big long spring. Do I need this spring to help keep zero on the turret? Thanks - Geoff.