I have several YoYo’s that would greatly benefit from an extra gram or two of weight.
There are also several more YoYo’s that I would buy if they were to weigh in just a bit heavier.
Would it not be a great idea to develop a bearing that is weighted in its design. That would be a very well balanced way of adding an additional gram or two to a YoYo. I realize that this additional weight would be centered around the axel, but that would be fine with me for the small amount that would be added.