On my last 2 trips to the range my eyes have been playing tricks on me, when I mount my gun check my beads and hold over the house I do it with my left eye closed, then I open both eyes and call for the bird.. now for some reason when I open both eyes i'm looking at the left side of my barrel/rib.. I cannot hit a bird flying to the left.. straight away, or to the right.. no problem.. I shot a whole round on station 1 today, I think I chipped two that went to the left, both were hit on the very front leading edge.. I have tried the magic tape on my left lens but to no avail.. the only 2 things that have changed is I have a new pair of RE non prescription glasses ( I dont wear glasses) and I have been using the TJ wall chart daily..any thoughts? thanks!