Well, no one has really told Jetech much about how to rig his skis beyond "hey look at the AC43.13"
However, when fabricating the aft check cable (the one that resists the spring or bungee and sets the allowable "nose-up" of the ski) The allowable limits in the AC43.13 are WAY WAY WAY too much. What you want is about 1.5 degrees of ski-tip "up" relative to the chordline of the wing.
If you put in like 5 degrees of ski-tip up, you will have gained nothing in ski performance over a 1.5 degree setting and will have slowed the a/c by A LOT.
As far as operations in flat light, spruce bows, or pieces of such, tossed out of the airplane make nice terrain markers, though they're heavy to haul around. Gunny sacks are another option. Black plastic trash bags are another, not so ecological option.
I sure wish SteveJ. had a way to make photo insertion a drag and drop operation, I have so many incredible ski-flying shots I'd love to share.