Unfortunately, I haven’t weighed planted ones as compared to harvested ones. We’ve been harvesting and eating for a couple of months now and we’ve just put 50-60kgs in storage so I’m really happy with our results this year. Watering has certainly made a big difference for me this year, and the other thing was mulch! everytime I had a wwoofer and needed a job for them, I’d get them to do another layer of hay. Had no sun burn and they were easy to dig.