I had a chance to try out the Mejzlik 20x13 EL 3 blade this weekend. I was pretty impressed overall. It had a slower downline (downlines were already pretty good) and a very constant speed. I will continue to fly it and compare it with the Falcon 21x13.5 2 blade I was running. The weight of the prop is very similar to the Falcon, maybe 10g heavier.
My impression is that it rolls slightly better with the 3 blade and feels even more solid in flight. I did notice that I tended to burn more power per flight because I was trying to fly at the same speed as the 2 blade. I will need to adjust to the slower pace and then the power should be comparable to slightly higher than the 2 blade.
We had some fairly windy conditions yesterday so I was able to see how it handled the wind. It did great.
More to come on this.
Steve