Hi guys. I am looking into purchasing a older proline walkaround boat. I followed the iboats check list for buying a used boat and had a separate question. As i was inspecting the hull, i noticed that the front of the bow kinda caves in or bends in under weight. Like when i would step on the one spot it would cave in under weight. Is this a structural issue or is it normal? Im thinking it might be thin material used for the top. Any input? Thanks (keep in mind, this is not a center console boat so the boat does have a cabin)