suggestion for some filter adjustments for the database

The filter for Normal, Exceptional and Elite (uniques, sets and bases) as well as for Light, Medium and Heavy (only bases) should be either exclusive so you can only select one at a time (like e.g. max sockets) or be used as an or filter so that selecting normal and exceptional shows items that are either normal or exceptional (but not elite).
The current way of being an and filter is pretty useless because there are no items that have multiple types at the same time. Selecting two (or three) just leads to no matches.