Thanks.

Yes there are few systems that can do this job, but many have a bulky components at the frontal area of the engine. This hampered the cowling installation and everything else... With this in mind, i placed a great emphasis on getting it as small as possible, light as possible, yet it's appearance is basically non existence. And that is the reason why i shoot the video from frontal view of the engine.

Milton,
You asked about the price... in my personal point of view, i consider this quite expensive for now as each individual components needed to be machined one by one. But who knows maybe later some big company or DLE himself would like to mass produce it, then it should be very much cheaper.

To others who are interested, kindly send me PM, then we can discuss about it.