The last few times I have shot my sights are off to the left by 3-4 inches. I adjust them and shoot fine. The next time out they shoot left again. anyone ever had this problem? any thoughts?

is your case pushing them down? are your torqing your arm , wrist or doing something different?
I know when I would get tired I would lose fundamentals and adjust the site for me sucking.

I have thought about both of those issues. I do not think it is fatigue because it happens on the first shot. It could be something with the case. Any other thoughts?

When i was looking for a sight, I read the reviews on cabelas and bass pros site and I remember one bow site and I believe it was a tru glo not sure, and that a guy was having the same issue as you are.

The sight has to be moving some how, or you are not anchoring in the same place every time.

I adjust my grip when this happens...if it's too tight I tend to pull the bow off left.

Thanks for that thought. I thought of that too but I am left handed and have a tendency to pull low and right.

Follow through. You may be catching your fletch on the riser. Hold aim until the arrow hits home. I shoot left too. This was an issue I had with recurves decades ago.

above ^ check the clearance of the arrow.
I would guess either your jerking the trigger and over compensating after a few shots or maybe you have oversighted and when relaxed your shootin right/wrong!
Is the change is hit every shot or jsut after a few?