RE: Nugent says "use 30 inch Arrows"?
NO.
The only thing that can be an advantage is having a longer arrow should be more stable in flight but the arrow rest needs to be set around 1" from the end of the arrow for maximum forgiveness.
Think about this,would you want a 50" arrow and the rest making contact in the middle of the arrow? Alot could happen in front of the rest on a torqued shot.