Regarding the pit area, particularly getting into and out of, with plane/lines/handle. IF the guy carrying the plane has to cross the other's lines, then the easiest way is to go just a few feet inside the line of planes. That way, you can see the leadouts, whether there are lines attached, and step over them easily. Looking for the lines 8' toward the handle is really the tough way to do it. Similarly, if you're the handle porter, then all you have to do is look for all the other handles, and you'll see where the lines are. Then, all you have to do is keep the lines snug and off the ground (dragging them on pavement isn't good) to be a good pit minion (the servant, not the steak).
Well, there are a few more pointers.
Only bring one of your planes into the pits at one time. Maybe there's room to have it nearby, for public viewing.
When you're launching somebody's plane, be sure you're not pushing down on the tailstrut...it can make the model tip up and buzz the prop instantly when you launch the plane.
Hold the model carefully at the front of the stabilizer and on the LE of the wing, while the flier cranks and cranks and cranks. Don't offer a lot of advise, unless you brought extra donuts with chocolate frosting and sprinkles.
Before you release the plane, always, always, always look at the leadouts to make sure the clips and lines/leadouts have not twisted and jammed up all wonky. The flier will appreciate your 'having his back' when he forgets to check this himself.
Be sure you point the model straight ahead, i.e., tangent to the flight circle, when you release it. This is easy enough to do for most planes, because the flap hingeline (most are straight, but not all) can be just pointed at the pilot. There is an exception to this...those like Leo and Roy, who fly clockwise, apparently like their planes pointed outward about 5-10 degrees, because otherwise it will yaw out rather violently upon release. By releasing it pointed outward, it's claimed to prevent the violent yaw and improve takeoff points.
When it's cold, bring lighter fluid to prime the hard starting engines with. And keep a freshly charged glow igniter in your warmest pocket...the one without any other metal objects in it. Don't put the lighter fluid in that pocket.
Steve