Still have the option of going to (or staying with) a non self-tacker jib. Could say there are still some advantages to this and depends on what type of racing you do. Reaching with a self-tacker is really crap when you can't get a kite up, and your local club may do a lot of this style of racing. So agree with Marcus' view, and bit of a sweeping statement.

Think the diagram looks great. As long as the measurements are fine, then it fills the purpose.