Entry technique from a platform a small to moderate distance above the water surface, which is suitable to stand on before entry. The diver faces the water and steps out with the leading foot, pushing away from the platform with the back foot, and drops into the water while maintaining a vertical posture until fully submerged. It is usually advisable to hold loose equipment against the body, particularly the mask and DV, and if there is no crotch strap, the buoyancy compensator is held to prevent it riding up the torso on impact. The feet can be brought together after initial impact to limit depth of immersion in moderately shallow water, by applying fin thrust downwards. 
He has since trained people in industries ranging from advertising to academia, e-commerce to engineering, and finance to pharmaceuticals. He has also done consultancy work with advertising and PR agencies for new business pitches: writing the tender documents, designing the presentation, and developing the delivery. For six years he spent the summer teaching written and spoken rhetoric at Durham University (UK). This experience encouraged him to branch out into speech writing, where he has advised top management, CEOs and government ministers. For one of his clients, Colin wrote a speech for the Heiligendamm G8 Summit.