Since nobody here either knows or was kind enough to reply... research revealed that the only radial tires in 16 in were the high-mileage type. Since I only ride on twisty mountain roads 25 miles/ride wanted as sticky and light as possible as possible (as steering is heavy even w/ forks dropped 25 mm and fully adj susp). So I went with Metler Roadtec 01, a tire specifically designed for lighter cruisers, they make a Cruisetec for heavier ones but which lasts longer but is heavier. Ripped those D404's off @ 900 miles, have appx 1000 miles on this set, expect they will last about 2500miles which is fine for my use.
I have a lot of right hand decreasing radius blind turns where you have to stay about 1 foot off that white line so I trail brake the rear to help tighten up my line. Don't know if it's just me but have 2800 miles on bike and just put the 3nd set of rear brake pads plus a new rotor, front pads look fine.