I had these two beauties out for several more flights testing the MA 6x4x3 prop.
After posting some of my test info on the RC Powers forum, I got great feedback from a couple of our Mig-35B pilots Jeff (Wildthing on RCP) and Carl (CRMERC). Jeff specifically bought a MA 6x4x3 prop to test in one of his Mig-35Bs using the very powerful NTM Prop Drive 3000 Kv motor. He reported no significant difference in speed compared to using the 6x4 APC two bladed prop, but a dramatic increase in power consumption. His flight time was shortened by almost a minute and a half, so certainly not a good combination.
Carl reported he has had excellent results using the NTM Prop Drive 2200 Kv motor. So based on this info coupled with what I saw using the MA 6x4x3 prop on the Gear Best A2212/5T 2700 Kv motor, I am even more confident that this prop is best matched with 2200 Kv motors or the lighter weight 2600 Kv motors (when the motor works properly :/). With more powerful 2700 or higher Kv motors, there seems to be no increase in speed over a standard 6x4 APC prop, but a significant increase in heat build up and power consumption, neither of which is good when trying to enjoy your park jet I don't think.
Another added bonus is that the MA 6x4x3 prop runs much quieter than a two bladed 6x4 APC or 6x3 EMP. It does have a bit higher "whine" at times, as mentioned several times almost like an EDF, but many of my fellow club members have commented how much quieter my planes are with this prop, even thinking I had replaced my standard setup with an EDF.
I will be adding the MA 6x4x3 prop to our Recommended Parts list shortly, even though they are quite a bit more expensive than all the other props we recommend, it is a high quality product that is producing great results with the "mild" motor setups. As mentioned, I perceive at least a 15% increase in power and speed with the 2200 Kv motors with minimal increase in heat build up and battery consumption while still drawing very safe amp levels. Definitely worth have a couple around for the 2200 kv motors in my planes.