Steve,

I'm thinking about a new flyer with a trainer that may need to be reworked by his flight instructor at the field. If he has used the wrong holes and has cut off the arm that gives him the correct throttle throw (for example) he might be out of luck for a while.

Once he has more experience, he can cut off as many arms as he likes. But until he has the experience to know which arms work and why, he is way better off not cutting off any arms unless he has to.