Winisd isn’t a good program. So forget about designing on that. Slot port is always gonna be better than aero port. So forget about aero porting. Sizing depends on more than just subwoofer, but amp power and number one thing is positioning. Port velocity is best ant 28 meters per second. 29 is too high and 27 is acceptable. Any program that claims to be able to calculate properly isn’t accurate. If you need any help, let me know.