For a better fit, try wearing a cap of sorts under the mask, and velcro the rear neck flaps together.
That’s exactly what I did to mine and it worked quite well. I explain the process in this thread:
https://forum.michael-myers.net/t/major-tots-h2-modification-and-overhaul/52444/1
I always find it weird how large this masks are, I swear the 3 Lunatics i had owned in the past were no where near the size of the TOTS version…I guess Justin enlarged it. But ya nowonmai that was a great idea to size it down, worked out very well!!
Killer
I thought it was a huge mask also.
Thanks man! I’m glad it worked out, otherwise it would’ve been $60 down the toilet, lol. 
I have mine mostly as a display mask. Same goes for 3 out of my other 5 masks. It’d be cool to be able to wear them all but I have a regular-sized head…maybe a little below average even, so I just accept that lots of copies will be large. My JTK is huge, as is my Evilution blank and my Destroyer/Revolver is also pretty big. The only two of my masks that actually fit reasonably well are my Creep and Closet Monster. When I had my NO H6 it was big too. So I got in the habit of putting on the beanie for worns which definitely helps. Speaking of which, I need to get that beanie back…left it at my friend’s house…I loved that thing! 