I am expecting a new CygoLite TridenX 750 OSP in the next week or so. I'll post my conclusions in a couple of weeks after I've had a chance to use it. I haven't ridden in the dark for quite some time, so I'll be comparing it to my memories (hah) of an ARC HID NiMH that I last used a few years ago. The ARC on the road had enough throw for me, but I do remember it not having a very wide beam which created somewhat of a "tunnel effect". I'm hoping that the TridenX will have the same, or longer throw, but a wider beam. From a QC standpoint, I think CygoLite gets the nod.