On the left is my old Mars Lander built when I was 12 or so, a veteran of multiple flights including a few hard landings. Survival of multiple moves. Long retired! On the right is my new just completed Semroc clone. First flight possibly next week. My building techniques have improved a little in 45 years! The sharp eyed among you will notice a little tribute to the old Estes version on the new ML..something unique to the Estes kit, not normally found on the Semroc.. you may have to blow the pic up to see it.