Final weight without parachute = 4.5 oz, or about 0.15 oz higher than last measurement. So the nose cone retainer + Future = 0.15 oz.
Measured CG comes in about .6 calibers further aft of OR's prediction. That's enough difference that it makes margin a bit tight with a D engine; I'm very glad I had a bit of extra margin built into the design (and I'll be sure to include extra margin in my future designs as well.) An altimeter in the payload section will restore order; if flying without an altimeter I might even put in a very small bit of nose weight.
Measured CG comes in about .6 calibers further aft of OR's prediction. That's enough difference that it makes margin a bit tight with a D engine; I'm very glad I had a bit of extra margin built into the design (and I'll be sure to include extra margin in my future designs as well.) An altimeter in the payload section will restore order; if flying without an altimeter I might even put in a very small bit of nose weight.