I, too, consider myself a novice at prop selection (and many other realms!)

Just finished a 79" Spacewalker and started with the YS91 recommended prop - 14 x 10 (as I remember)

Couldn't get it landed. Let the masters try it....couldn't get it landed (properly)....

Finally, last weekend I came equipted with a battery of different size props. Each flight, a different size prop, different manufacturer.

Finally found that the 14 x 6 was the key. Boy, what a difference in how it slowed on final! The wooden Zinger and Master Airscrew slowed much better than the agressive APC.

From a ten (10), to an eight (8), to a six (6) pitch made a big difference in the breaking aspects of the plane. APC to Zinger added to the joy.

It is gratifying to read the suggestions of all of you knowledgeable guys, wish you were all in my club...