Great comparative analysis, Nick. I have always believed, although similar, these are two different varieties. I do think the ripening time variable may be at work here. I think the negronne was definitely more ripe and as we wait for a few extra days, the flavors really start to develop. I've had some mighty fine vdb brebas, too, especially when they are dead ripe. It will be interesting as you ripen more, if you can find two " identically ripe" Breba ( vdb vs negronne) what the results will be. I always look forward to your videos. Thanks.