Gasket mount 60%. Nice.
Sure the USB port cutout is not pretty if all types of Mini-USB, USB-C universal PCBs are supported. It would be a "close" compromise if it supports one type only, for example USB-C, when tight cutout is preferred.
Take a step further, if we go to proprietary PCB, the cutout should be right in the middle for aesthetics, like M60, Viper, E6, etc.. I think it's also a good choice for a tight cutout in this case.
IMO it will go too far to have a usb cutout on the right, which looks like a bit randomly positioned in current render picture.