Just wondering about opinions on Leupold's Mark II scopes. Leupold says they "must pass the same harsh testing as our Mark IV scopes." How's the glass? Are the turrets 1/2 MOA per click? Looking at the 4-12 or 6-18, are there better scopes for the $550-600 price tag? Did a search on Mark II. It mostly brought up threads about Mark IVs and anything with the word "Mark" in it.