I ended up buying a masuri anyway off tinternet and for some reason this one doesn't really have the same problem!! I measured my head at 61cm, so I thought this has got to work somehow it says 60-63 for crying out loud! I'm so glad I bought it, its vision is so good. The chin strap is a tight squeeze, I think that is a bit of a design floor, they could easily add a tiny extra bit of strapping to be adjusted. I'm just so impressed with the grill settings on the masuri, you can get the grill nice and tight to the face, instead of it sticking out and ruining your peripheral vision, and I have a massive gap where I can fit a ball through it easily!!
I've had two innings with it so far, a duck on Saturday lol, but then 100 not out on Sunday