So, Matt pointed out that when you do things like that, the scores for different Models are all ranked seperately because they’re coming out of different indexes. The trick, obviously, is to use the multi_search method, which generates a multi-model-index, and that’s probably a better approach. This approach is very well documented in the RDoc. So all it shows is: probably should have RTFM. The thing below isn’t by any means bad, it’s just a little like re-inventing the wheel.
Never mind, eh?