I've not had this exact model, but if the internals are anything like the Gamo Vipermax I had, I can see why you like it. That was a long stroke (100mm?) lazy action with very easy cocking. Once de-twanged with a Welsh Willy guide and top hat, remarkable fitting manners. Far better internal finish than I would have envisaged prior to stripping. Piston weight was very low - circa 115/120 grams, I seem to remember.