How important do you think the ejector

Rod locking point is, on a S&W, as to accuracy? Colt does not have that at all on any calibers. Colt also depends on the bigger diameter cylinder bolt's spring pressure to lock the cylinder. S&W has a stiff spring detent pin on the back of the cylinder that locks into the frame, quite the opposite. Of course on the S&W, other end, the barrel has the spring detent pin that also locks into the tip of the cylinder ejector rod tip. Locked into position two directions, opposite ends. Sounds so much better.

But the old 8" Python I used to have would shoot 2" MOA with only the crane arm and spring pressure cylinder lock holding things in line.

If my S&W is not locking in front by about 1mm how much could that effect accuracy if at all? I just don't see it really hurting much. But I'll fix it.