Hi AndyXa
If both legs have different point value, then spread is calculated as equity spread, each leg is multiplied by its point value. Spread is then quoted in dollars. Anywhere in our platform spread definitions are same. What you see is what you get
ADH15-SFH15 is one contract of AD and one of SF. In Search, hedge ratio is 1:1 for all spreads except GC-2PL. Usually 1:1 hedge ratio is good enough. If you want to be more precise, you can move spread from Search to Analyze and adjust number of contracts e.g. 5ADH15-4SFH15.
You probably noticed Multi Analyze, it works little bit different and gives you more freedom in spread definition. Currently it's only for 3 and more legs spreads, but we will integrate it soon to the whole system. You can define conversion, so spread doesn't have to be calculated as equity, but you can use conversion factor to adjust legs. You can read help for Multi Analyze builder, it's explained there. With integration of multi legs spreads to Search, we will probably include more spreads with different hedge ratios.
Also on my roadmap is to add new tool to Analyze, which will include different methods to calculate better hedge ratios.
Roman