Repair of hollow board
I have a 2007 (approx) Starboard EVO 70 XTV wave board which is of a hollow construction. Most of the board is in really good shape. However, there is softness under the port footstraps; under the port rail near the board's widest point (size: 50mm x 400mm); and next to the finbox.
I am familiar with the process for repairing boards with EPS core. Can you help with some advice on repairing hollow boards please.