Regulators?

One more thing to add I shoot starlings at long distances and also squirrel hunting so accuracy is Paramount

Hello,

regulators give strings of consistent shots by maintaining the same air pressure for every shot.
The fps spread could be really minimal, sometimes 2-4fps depending on other variables and quality.

If you have a legal or regulation limit, the regulator can provide excellent performance at those limits, and if the limits impose low velocities, the regulator will probably improve the number of consistent shots reducing the fps spread over a larger number of shots.

For high power applications the limitation is the reservoir and the tank pressure.
With powerful shots, the regulator will also maintain consistency, but if the reservoir cannot maintain a back fill, the number of regulated shots will be limited or the power must be reduced.
That is why for most high power regulated applications people tend to use 4500psi tanks and regulate in the 2700-3300psi. This way they can maintain high regulated pressures for higher number of shots.

All I explain here is very generalized to give you and idea, but changing tank size or valve and other variables can alter these results.

Use regulators when accuracy is important for every shot (competition or hunting very small targets with low power).
If you are hunting a larger target and you can afford a bigger kill zone then you don’t really need a regulator.

I hope this helps. More can pitch in.

Cheers
Chris