Im trying to mount an IOR 3-18 FFP scope on my wifes rifle. Problem is she is short, the stock is as short as it can be, if you have seen the IOR you know its less forgiving about rear ring placement than the SB PMIIs with illum and parralax on the same side. I cant move the scope any further back to get her proper eye relief, any ideas as to what to do? Rings are Seekins and the base is Ken Farrel?