The Switchblade is a great helmet too. The chin bar is probably the smallest of all the removable type meaning you can tuck in in a strap until you need it. It does mean it's an over the ear job without chinny but looking at current Giro/Fox helmets that's where it's at.
Def is heavy and hot though.
For the price if I was to buy again I'd go for a super lightweight permanent full face ProFrame or the like, and a nice trail lid for similar money. I think you'd decide on the riding your doing rather than needing to keep converting midride