Few things. After my first skate I actually had skating lessons with a coach. And it was my first time ever doing so. He said my .75 hollow was way too shallow. He advised going to 9/16 and getting them profiled. He also told me to add a toe cap inside the boot (haven’t tried yet). I played a game with the deeper hollow and profile and it was great. I have the Apple Watch hockey tracker and reached 21.8 mph vs 17mph and felt awesome. When I walk off the ice it is quite loud however no issues. Next skate I will add the toe cap and experiment with the plastic inserts.