Hi, I’m a mum of a 9yo GK Ollie and want to learn about the different cuts to get the right next ones for him so would appreciate all your experience to help please? 🙏He’s currently got negative cut ones with finger spines with 4mm grip size 6. He plays on grass mainly, the odd game on Astro. Any advice please? What’s the difference with roll, hybrid or negative please? 🤷♀️🤯🙏