first i would like to say i hate pumping the stupid thing up but i had some fun this weekend playing with the discovery. i did the 3 screw trigger mod and fitted a power adjuster to it. it took about an hour and $10 worth of parts. i eliminated the first stage of the trigger and it shoots like a powder-burner trigger now which i really like. it has about a 1lb. pull.....very light. i did a quick mod on the hammer spring with some guidance from a friend in alabama on the phone. it is now shooting kodiak extra heavies around 915-920 fps.....a little over 19 fpe....i consider that great for a .177.....i like exteme power!!...i'm getting around 25 good shots per fill and maybe that's why my arms are sore..ha!!!....i already eliminated 2 tree rats, a crow, and a blue jay. i plan on using this gun to teach my granddaughter to shoot so i will definately turn the power down but for now i'm in the "gray" area about the DARK-SIDE. timmy will probbly want this gun back when he shoots it.....HE HAS FIRST DIBS ON IT.!