In reply to Martin1978: Hey I have a storm. All in all a good headtorch. A few things that may not be in the specs...
Not sure what kind of searching you want to do but the main beam is fairly tight and focused, more for distance than floodlighting the ground. This is good for spotting things a little further away. The secondary LEDs seem designed for giving you good vision all over if your climbing up something, a face or whatever. Not too bright that it dazzles you. I use this mode for descents to save battery.
The strap is fine for me, it's lighter than the icon so holds well with just the one strap. Not used the icon so can't say much about it. Will be brighter, but heavier, more complex and expensive. The storm you're probably more likely to chuck in you bag/pocket just in case. Either should serve you well, depends what you need.
I thought the same before i bought one about the ramping of the brightness. Why not start off dim? One answer to this is that it is nice to have full beam just that more easily accessible for when you quickly want to point out/spot something at a distance, then change back to secondaries. It's not all one way, but I think they way it is just edges it for me. OTT for camping, you will be dimming it.
Everything is controlled by one button, there is no memory for brightness, you start at full brightness when you turn it on.
Hope this helps.
P.S dont forget to use the lock mode. Very handy to make absolutely sure you still have batteries when you dig it out.