FX DRS Classic in .22 has been tugging at me for a while. What has been your experience with the DRS? I am interested in staying with the 18.1 grain pellet or 15.89. These both have worked well in other rifles for field and target. I presently have an Air Arms S500 and Daystate LH Regal in .22. The Regal is pretty stiff to cock having arthritis. Are you satisfied out of the box or need adjustment / upgrades? Thanks.