That's all great information.
Though you don't grow RDB in ground, I'll note that my highest hopes are with RDB for favorite ground die-back fig in cold zones. RDB is reputedly so exceptionally 1) robust, 2) flavorful, 3) productive, and it's also to my eyes exceptionally 4) visual both fruit and leaf. A good handful of cultivars are exceptional in several of those four categories while RDB seems to cover it all. Maybe Nero 600m (Valle Negra or Valle Calda?) would be a runner up? And then not far behind with high level flavor, robustness, and productivity, if less striking leaf and fruit shapes: the Mount Etnas, Improved Celeste, Florea, Gallo? I hope to have good trials on all these types over the next few years. Glad to hear that RDB continues to impress in pot or not.