No need for a second printer. Question is still what is your firmware as it sets how to configure height. I guess you have marlin which also shows eeprom in host, but doe snot match the tutorial solution. Send M115 and see what firmware answers (easy mode off). For marlin search marlin solutions instead.
Regarding vase they are solid, that is normal. In slicer you need to enable vase mode and set top layer to 0, bottom layer to how thick it should become.