If you are or have been a Lupe comp series owner + user, what if any temperature shifts have you seen with your "modle" of x35, x 40 or x 45? Been using a x45 now for a few weeks in varying conditions and not seen it shift once? Oh and this is not as my hand muscles remember the ranges on our practice course Yet I have always heard /read comp series owners say their scope shifts at X degrees? What I have seen is small shifts in ranging in different light levels, but so far nothing in heat. so, whats your theory on your scopes X shift number ??