My dad is a music producer but he's getting older and as a result, his hand dexterity is getting worse. Although there's no official neurological diagnosis, his hand will shake or tremor when he's trying to to point and click on small icons. He uses software like Pro Tools where the icons are always going to be small, especially if using multiple plugins. I gave him an old mouse I had with a few adjustable weights in it and it helped him. I wanted to know if there are other computer mice that are heavy enough to help him. It doesn't have to be fancy or anything with multiple buttons, standard left right click is fine, as long as it's a good weight.