for more easy painting, I saw some coaches making this way :
1 paint the hole board in white
2 with diferent masking tape widths, make your field marks.
3 paint all the board in green
4 remove the masking tape, it's done
I love passing sticks. On big boards, it's a real challenge. You need to improve your tweaking skills to make anything else than short passes.
Personaly my passing sticks are at the same scale than my board. Some other coaches use tudor 620 scale for their sticks even if they play on big boards. It makes the passes easier. You have to see what you'll prefer yourself, not one better than the other.
TTQB ? It's fun to use. But I prefer passing sticks.