A search will take you to threads that cover almost all of your questions in depth. The pages of opinions will reveal a good cross section of opinion as well, rather than one reply for you to read that will not necessarily be the whole story. Search is the tool third from the right along the bar at the top of the page, search for Piedmont and then PDT. I'm not being a smart alec, seriously, reading responses from more people gives you a better view of popular opinion. Good luck!