Hello, I have a 2 pairs of Fives 2.0, one of which I bought recently. I love my original Fives 2.0 since they fit my face so well. I recall that my optometrist bent the arms a bit to conform to my head and to hold them in place better. I would like to bend my "new"used pair in the same way. I seem to recall that heat may have been applied to the arms to bend them. Any ideas?? Recommendations on bending the arms? Attached is a pic that shows the new and old Fives. Thanks!!