Hello, I made a trip to the local hobby shop yesterday and they had a free stack of 2021 Estes catalogs. I arrived home and paged through it, but saw a pretty shocking gap: no Black Brant III. I see it in the 2020 catalog, right next to the Black Brant II, but the 2021 only includes the Black Brant II. Has this model been discontinued? Does anyone know? I've built and flown one already, but I always liked the model and hope it would remain available.