Does anyone have a preference toward one handle/grip design over another for their retractable leashes? My dog is a little wild yet for me to feel comfortable having him on one, but in a year or two once he has matured and his leash manners have further improved I would like to have one. I'm cautious because he is pretty big, pretty fast, and sometimes hits the end of his long line hard when he's excited, and I've seen those slick plastic retractable leash handles come sailing out of people's hands way too often not to be picky about how the handle is designed. Especially since the size of the handle tends to go up with the durability of the leash, and my hands are pretty small.