Im teaching my step daughters to windsurf. They weigh 40-50kg. Can sail longboards n Bic Presto (120l) sub planing tacking n gybing. 5-10kts 4.4m prolimit kids sail. No walk of shame reqd. Just about to start harness use. Will the Presto +sail combo get them up n planing in stronger winds? Any other old boards good for learning lightweights?

How'bout something like this? They come with a removable centre fin and full EVA deck.

www.seabreeze.com.au/Classifieds/Windsurfing-Boards/~v5dk3/2016-Starboard-Kode-Freeride-Tufskin-236-cm-113-litres.aspx?_page=1&search=0rGHfxqAmELCSxqzQ%2FeUVUYc37D5Sg1C