I just got my Bob Holman order today. The plans and laser cutting are excellent, but the planes have no place to attach the control lines.
(Seriously, they are great free flight, old timer short kits. I got a Mercury and a Scorpion.)
The triangles are pretty neat. They are 5 bucks per ten pack and they come in three sizes. I will also be ordering more of the wing rib holders. They look like the cat's meow for wing building. The bases on the triangles have pin holes buiolt in, an they fit tightly without gluing. If you were a bit creative, you could even break them back down for traveling and use them again.
Another construction trick I might pass alond is one I came up with while buiolding peanut scale free flight models. It will probably only work with the smallest control liners, but it is a neat "quick and dirty" system. I use dice to hold my wing ribs in place. I grew up playing all types of games, sports games, D&D, Traveller and RPGs. I have amassed quite a pile of old dice over the years. Dice are as square as we will ever get a with wooden model. They are resistant to most of the glues I used. They get placed against the wing rib, and captured in place with T pins. Works like a charm, and looks really cool on the building board.
Good luck,
Dave