Just a question Armargh no argument but wondered why you find yours not as powerful, maybe there's a difference in the later models or my Paslode was getting tired.
I was very lucky to get mine free when I was one of those approached to give a pre launch test and appraisal so I was very thorough and directly compared the DeWalt side by side with my Paslode 350 over a period of a month during which I found the DeWalt would easily sink nails to the same depth as the Paslode and was as quick, in fact in bump mode it was faster. That was a number of years ago, I sold the latter machine a few months later, the DeWalt has been in use ever since and I find it reliable enough not to part with it.
My mate who bought the s/h machine a few months ago said the nails didn't go in far enough but that was before I showed him the depth adjustment knob.