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I looked through a 3.5-10 and a 4.5-14 LR. Honestly, I couldn't tell any difference. There is supposed to be an upgrade to a Mark 4 style erector spring set-up which would matter more if I could break the old ones.
I figured they'd be more or less the same. Maybe the diamond coat and XT system gives it better low light clarity...probably not enough to make a difference though.