and i share Rebels
She is 5'2"
and i am 6'0"
Her arm reach is about 4 inches less than me
I dropped the adjustable North cleats accordingly on all our bars to fit her perfectly
It shortens the depower trow for me but i can handle the change very easily
Our 12-10-8-6-5m2 have bar/lines on each of them
Yes it is expensive to have complete bar/lines kites but well worth it for us
We both work....both kitesurf..both share the kitesurfing expenses
About the length below bar
We have 2 more kites......Core Riot XR3 19 (mine) & 17 (hers)
Their Sensor bar is a good "2 inches shorter below the bar"...
.... because it is a twist QR instead of push QR and....
.... the below bar finger operated rotator is a bit shorter