I adopted the recommended change on the vertical stabilizer leading edge tube from 1/2 aluminium tube to the 1/2" x 0.035" 4130N tube. The bottom rib is also now 1/2" x 0.035" 6061-T6 instead of the bent up sheet aluminium which has been prone to bending when shrinking the fabric covering. Am very pleased with the rounded more Cub inspired look of the vertical stabilizer and rudder. I drew the LE HS on to the workbench and then printed an expanded a graphic of the Super Cub HS. These printouts I shuffled around to fit the outlined dimensions of the original. Will see how it goes when bending the tubing before deciding for sure. Am liking it so far