Fin boxes on the QUAD

Hi, Im almost certainly going to get a quad next year.

However Im a bit worried about the fin-boxes. I met a chap on the beach, sailing a quad. He showed me a problem with the rearmost fins - they were loose - and he had to put plastic shims in to keep them solid. Has Starboard noticed this potential problem - surely the board is thick enough in the tail to support the powerbox fitting as in the frontmost fins - and not bother with the more feeble surboard finbox ?

Thanks in anticipation.....