Thanks for the replies, guys. I'm thinking the DiNotte is overkill, as is the PB alias (plus its external battery pack is a problem -- I'm already carrying two other battery packs). I'm probably going to go with either the PT Eos Bike, or a Whelen TIR3 (mentioned in the other thread) wired into my 12V system.

And Giro, I think your observation about pulsing lights is spot on, and borne out by this morning's observations which I posted to the other thread.