After a mis-cut set of leading edges for the Stabilator I purchased additional 3/4" x 4" 6 foot pieces of pine. The past few weeks have mostly been either below zero outside or very close in the single digits. The thought of heating my garage up to 60 degrees (which would take about 2 hours) did not appeal to me so I waited until the temperature was at least 20 degrees. So today I measured and measured and measured (seemingly endlessly) to try to get the right length and placement of the 1/4" notches in the leading edges of the stabilator. I have mentioned before how the plans call for 10" inches from the outside edge of the ribs down the length of the stab spar to an 8 1/8 inch spacing on the interior two ribs. This (hopefully) leaves a 7 1/4 inch gap between the interior edges of the two interior ribs. (overall length is 84 inches if anyone wants to play with this - don't bother - the numbers do not add up unless you account for the 1/4 width of the ribs) The problem is that multiplied over 5 ribs the width of a pencil lead can throw off the last measurement on each side and eventually mis place the interior spacing. I solved this issue by cutting the two leading edge pieces together to match the 7 1/4" interior space and then matching each rib placement on the 2 leading edges. The next step before fitting everything together is rounding the leading edges of the two pieces. I roughed these out and will sand them round after assembly.