[For reference - Head is 60cm, have a large Met Kaos which is about half way on the adjusters and a medium Spesh Echelon which is maxed out and just about comfy]
Currently in the market for my first full face helmet. Tried a large and medium 661 comp and had side to side movement on both, and could pull the chin guard up to almost over my eyes. Medium felt like it wasn't properly on my head.
Trying a Urge now, are the cheek pads supposed to go on top of each other? If I do that it feels snug, but no side to side movement. Still feel like I can peel if off easy though, probably need to play with it a bit more.
In the meantime I'm gonna see how the Specialized fit at my local Evans...