Additional SDC fields: buoyancy, situation, instructor req, student ratio
See BSAC SDC matrix: http://www.bsac.com/page.asp?section=4074§ionTitle=SDCs+-+Instructor+Requirements
Additional fields:
- Buoyancy Entry Level (None/Bronze/Silver/Gold)
- Situation (Theory, Dry Practical, Sheltered Water, Open Water in combinations)
- Approved Instructor Required (Yes/No, Type, AI and SDC held is auto OK)
- Instructor/Student ratio (Ratio, o/w only?)