I use the um "Cabrinha Foot straps".
They only have slight adjustment using the different pin holes in the bottom of the strap.
Cost app. $12 a pair.
I have high arches and big feet, I have these set on the narrowest web settings on the foot strap and they have been brilliant.
Use them on both my JP SS 118 and F2 SX Medium.
Super comfy, no chaff, the foot locks in, I have never had the front foot slide or bounce out. Tested extensively at Melville Beech and Gnaraloo.
One of my friends of smaller stature tried them on a *board and needed them to be smaller, so I think for the larger foot.