OMG! Ignore that last post. Let hope he fixes it.

No reason to wait on the trigger. You obviously need to shoot from a good rest.

YES. You have to file the front sight. I suggest you try CCI standard velocity and mini-mags and see which is closer. Then file enough to get that load close. I would then make up the difference by holding with the blade a little high. The only bearcat that would interest me is the Lipsey with adjustable sights. This is so typical. At least the gun shoots low which is the best you could hope for.