Ah, to have a printer that can do a helmet in one go... I started with an Ender 3, splitting up those same files, and I broke down and bought a bigger printer. Lol, It's so nice! Well done with the first couple prints! I finished my first set in Oct., and I was finding I had to do at least 3 heavy filler primer coats, but I was also printing at .2mm layer height. What are you printing at? Like others have said, sizing looks great, better to have a bit too much room than a bit too little, like mine. Keep up the great work!