I'd agree with Thomae - you've mounted the scope a full 2 inches further back than I do for myself (11-11.5") and still you think it needs to be further back....... nope unless this is really for someone about 5' and 95lbs dripping wet - people vary but not that much. I'm thinking the rings are so high on that style stock your cheek is not even close to being firmly planted on the stock. By raising your cheek/head up off the stock it would naturally bring your head back, compounding the problem.