Thanks guys for all the great replies. I didn't intend to reopen the best blinky discussion again as that was pretty well beaten to death here:
http://forums.thepaceline.net/showth...hlight=dinotte
http://forums.thepaceline.net/showth...hlight=dinotte
http://forums.thepaceline.net/showth...hlight=dinotte
I did a 100 mile weekend ride on Angeles Crest Hwy and we had a variety of taillights in our group of five. I was using a PB Superflash Turbo, most others were Cygolite Hotshot, with my buddy running two Hotshots one above the other. Otherall, nothing we had was good enough for the bright sunny conditions when viewed at a distance. The 2x Hotshots was marginally acceptable.
So that's way I came home and decided to try a Dinotte. What I may get is the Dinotte 400R AA powered light ($129) and use my own Eneloop rechargeable AA's (2 or 4 cell). Not a big fan of USB recharging