Here you go. You can do a search over there as well - there are lots of posts related the the EREK adjustment system.
Yeah - My SFP center dot is on at 6x but off more than I like it a 1.5. Not enough to make a difference at close range, but it still bugs me for what I paid.
http://forum.snipershide.com/showthr...highlight=EREK
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