I have been running the 120-day eval WHS for about 10 weeks, and recently bought the official version from Newegg (but haven't installed it yet). I would like to try the PP1 Beta, and I don't mind re-installing WHS when necessary. Should I install my official copy and apply PP1 to that, or should I download another 120-day eval copy, run PP1 with that, and then re-install the official copy and follow with PP1, once PP1 is released to manufacturing? Thanks for the advice!