I run a P/P Thief only if WvW. Reason might be similar. I am currently a level 40 and I love WvW. The problem I have is I feel I do not do enough damage at my level to be effective. I greatly enjoy running supplies and scouting and every once in a while get into zergs and have a blast. So when I do, I prefer the P/P or Shortbow off set. The 3 on the P/P can get me in a fight, burst a low health character or become a “nag” on the enemy by getting in and out very quickly. I’m currently at work so I can’t look up the name, but I use the signet that grants full endurance back on activate. Can get me in and out extremely quickly. But this is all subject to change once I get to higher levels. I can see how the P/D can work very nicely though. And of course this is mainly my personal opinion. I know it’s not very strong and after the loss of initiate, you’re pretty much toast and need to get back with your group. Just my two cents.