I have my gun sighted in at 200 with the scope but the turrets don't line up at zero. My other scopes swfa 5-20 you just lift the turret cap off and place it back on zero...can this be done on the vortex? If so, how do I do it. I've read the manual but that would require me to rezero and I really don't want to deal with that at the moment....just want to dial back down to zero.