It's all very well having a fancy crabbing main landing gear. It lets you set the anticipated drift on landing. But can you imagine the embarrassment if the wind has suddenly changed or it is blustery, and the drift is different? When you touch down, you are likely to suddenly shoot sideways. You can see if 5 degrees expected drift becomes 5 degrees the other way at touchdown......you will be a Pprune star! Better to do the way the Wright brothers planned.......the old fashioned way without any fancy sophistication that could cost you your pension.