pigtails... how long are your pigtails typically? after watching a few videos here and there i'm guessing those of you with sizable displays have psu's/controllers etc at various spots around the display but i want to keep all the power and controllers somewhat centralised but that would mean pigtails of potentially a couple of metres (picture top story balcony to roof outline) which, doesn't sound right. do you have custom length pigtails or am I missing something?