But, I'm probably going too... I'm not familiar with the gun. Leaks in PCP's are usually a simple replacement of some orings but then we'd have to diagnose where the leak was and what the replacements are and if there are odd tools involved. Even then, some are easier than others. So, sending it off is easy but way more expensive than replacing a dollars worth or orings.
To even that out.... if you are not comfortable adjusting the trigger to a safe level.... absolutely send it somewhere. Better to invest a little more in the rifle than not feel comfortable using it.
Maybe call Pomona Airguns to. Been very helpful to me and faster, but it's been a few years.