Anyone know how these two models compare for optics quality? I'm considering the Conquest 4.5-14x44 and the Big Sky 3-12x42 (non AO) for a new rifle. I can't find any locally to compare. I know the Conquest costs more and that their glass is very good, but the on-line comments I've found for the Sightron Big Sky models have been very glowing, with some saying their glass is at least the equal of the Conquests, but for a cheaper price. I don't want to pay more just for the Zeiss name if the quality is the same. Both have a lifetime warranty, though the Zeiss warranty is transferable. Thanks.