This is what Charley Brown said, presumably regarding the Legacy:

 

<<Lancair provided L-shaped lead stock, approx 1inch X 1inch cross section.  It is affixed to the "leading edge" of the aileron, and I had to apply it across almost 100% of the span of the left aileron (which has the trim tab and servo), and about 2/3 the span of the right aileron.>>

 

For the 320/360, Lancair provided lead half-rounds, and you use a pair of them on either side of the leading edge, so it looks like a solid rod with the fiberglass leading edge trapped in the middle.  The amount Charley says is still correct -- almost full span for the aileron with the trim tab, and about 2/3 span for the naked aileron.  It seemed like A LOT to me so I called up Carsten when I did this several years ago and he said "That sounds about right".

 

DO NOT FORGET to reinforce the leading edge (the curled part) with stiffeners similar to the ones described in the manual for the flap leading edges.  Several early builders reported "buzzing" which was traced to flexing of the weighted leading edges.  A pair of stiffeners on each aileron does the trick, and this is not in the manual.  Drill a drain hole for water to escape, too, as the stiffeners will trap water that runs off the top of the wings.  Did you drill a vent hole in each aileron for pressure to escape at altitude, too?

 

- Rob Wolf