I just talked with PPS, they said the installing a spring might damage the Nickle. So the spring job would be a little much. Does adding a spring feed make it less of a stock class marker? I think I will send it to PPS after the holidays for a ball dent, widget, and a leashed larger feed cap. My boss is a great wood worker so the stock will get refinished. I will try and make it out to a field this year, if I can't, then I'll put the KP2 up for sale. The P68 will go up for sale next week when I'm home from the holidays. Is the HP tank worth Hydroing? Man its interesting to see so many changes, and new markers out there.