Regarding preparing props in advance - the 30 participants that evening were circulating among 3 rooms viewing before wrapping up the evening with the spoon bending session. We discussed the experiences in the 3 rooms for perhaps 20 minutes before turning to the spoon bending exercise. The bin of utensils was in the room during that 20 minute discussion and no one was handling the utensils during that time.
I would think that bending a spoon back and forth to fatigue it in advance would be more likely to result in a break rather than a bend. However, I don't have any experience with this so I can't be sure. If some of the utensils had been fatigued in advance making a portion of them easy to bend, I would expect the distribution of bending success to be distributed among the participants fairly evenly. That wasn't the case. While I randomly took 3 different spoons from the bin and didn't have any success, the women next to me and across the table from me repeatedly took utensils and bent every one they handled. The 40% who were successful, bent more than one spoon. The odds of a random distribution of fatigued spoons with repeated sampling from the bin to only 40% of the participants seems very remote to me.
Regarding bending at the same spot - if I get a chance to attend another, I'll ask one of the adept benders to focus the bending to another spot to see if the "softness" can be found somewhere other than the thinnest portion.
I would think that bending a spoon back and forth to fatigue it in advance would be more likely to result in a break rather than a bend. However, I don't have any experience with this so I can't be sure. If some of the utensils had been fatigued in advance making a portion of them easy to bend, I would expect the distribution of bending success to be distributed among the participants fairly evenly. That wasn't the case. While I randomly took 3 different spoons from the bin and didn't have any success, the women next to me and across the table from me repeatedly took utensils and bent every one they handled. The 40% who were successful, bent more than one spoon. The odds of a random distribution of fatigued spoons with repeated sampling from the bin to only 40% of the participants seems very remote to me.
Regarding bending at the same spot - if I get a chance to attend another, I'll ask one of the adept benders to focus the bending to another spot to see if the "softness" can be found somewhere other than the thinnest portion.

