I find Doug point very true and basically that was also CPLR response. CPLR told me in SA: "Try this. in my experience strange ideas that were considered to be nonsense found to be real value for F3A quality and ideas with 100% potential to be real value for F3A quality found in test to be failure". I think this reaction gave Isaac the final push to build it. For example all estimates and calculations done by really educated people showed that model will pitch down when break will apply. for me (stupid guy) it was just clear that it will pitch up and it ended up to be this way... so some time it is just better to forget all and just go and try.
I must also admit that I was very skeptic about this and I was very surprise to see the result in the air.
Also, need to metion that in order to get very good break on Najary' current model as well as quality speed control, only ~40 degree deflection is needed.
finally, Najary' did another smart thing and that was he assigned additional trim lever to be able to trim (like other control surfaces) the basic (straight and level) angle of the canalize. That is MAYBE why he came to know and was able to fine tune the advantage of these canalizes for a straight and level flight!!!

Good Job Izik!. You are a great value to F3A World community...

Amram