The benefits of the Huma-Air, Evaninx Sniper tuning regulator are:

• Higher accuracy of your rifle due to the elimination of the pelletspeed fluctuations
• A constant pellet speed over the full working pressure range.
• It will give you a better shotcount and a full flat shotstring immediately.
• Adding a regulator to your airrifle will probably give you the biggest benefit in the tuning process.
• Often the rifle will make less noise due to better balance in air usage 

Note: No returns will be excepted on this item as it is factory set and tampering will void the warranty