we (110 and 170 pounds) have been kiting for a few years. We have been sharing a kite quiver for kitesurfing with twintip and surfboard. Usually with a size difference of 2 square meters. Our kites are: 5,7,9,11 Naish Boxer. We've been foiling for a year now and the Kite difference of 2 m doesn't work anymore. We both want to ride the same size now.
Is there any advice? We don't want to buy all kite sizes twice. That would also be very bad for traveling.
We both are on 1200 qcm wings.