Hi all. Thinking of buying a Dreamline ST Elite in .22 with a saber tactical stock. How adjustable is this rifle? Can I have it set at 30 ft/ lbs and easily adjust it to say 11 ft/ lbs by use of the setting dials, or would it mean that I would have to adjust the regulator? Hope someone can help as it will sway my decision to buy an fx or an air arms 510. P.