Al Merrick Bobbys Quad

Hi,
Anyone have a Al Merrick Bobby quad in his quiver?
Bobby Quad
Want to buy one for small waves but they said the model is designed to be ridden 3” to 6” shorter and ¼” to 1/2” wider than your shortboard.
Use to surf a 5'8, that seems I have to buy a 5'2/5'5, seems very small no?
Anyone have a Al Merrick Bobby quad in his quiver?
Bobby Quad
Want to buy one for small waves but they said the model is designed to be ridden 3” to 6” shorter and ¼” to 1/2” wider than your shortboard.
Use to surf a 5'8, that seems I have to buy a 5'2/5'5, seems very small no?