Figure 2. Hull Side Plan Shape view. One may note that Gromzer features a wood-like finish and appearance. No, Gromzer is not comprised of solid wood. No, Gromzer is not hollow. Um, nope, no ‘falsa’ airbrushing. It’s not veneer either. Gromzer features Master-Designer Bert Burger (note: no longer with firewire) inspired vacuum formed balsa wood skins. Gromzer was conventionally shaped from a WNC expanded polystyrene 2.5 PCF surfblank. Once shaped, a fiberglass and structural balsa composite shell was vacuum formed to the exterior, tuned to shape, and then conventionally laminated.