I am running a Saito 82 with a 15x4w apc prop on my UCD-46 turning 9900 rpm with 30% nitro heli fuel. Thrust calc is showing me a little over 14 lbs. of thrust on a 6 lb. plane (2.3:1 thrust ratio). My question is, how do I choose the best prop for vertical pull out? I watch videos of planes that in theory have less thrust to weight than my plane, but the pull out of a hover twice as fast as my current setup. The only thing I have noticed is that the other setups are running 6 pitch props and not the 4w or 4. For example, the EF yak-54 video from the EF web site shows his plane with a YS1.10 and a 17x6 prop. and a 9 lb. plane. This should be around 18 bls. of thrust on the calculator (2:1 thrust ratio). The yak pulls out vertical much faster than mine, I don't get it. Will the higher pitch help with the pull out, or am I just completely missing something here.

Thanks for any info.