So what is the reason for no Combo edges in the salt lineup?

[JLS]

I'd propose that another possible reason is the different levels of edge holding. I have a couple of PE Salts that are nothing spectacular with regard to edge holding, while the SE Salts are impressive in edge holding. To combine them on the same blade would likely make the average user wonder what's going on.

It's true that there are the Caspians and the latest Catcherman that buck the trend, though neither one is likely to get into the hands of many uninformed ELU's. Most of the users of the Caspian are probably grateful to have a dive knife that even remotely holds an edge and the average USN Catcherman ELU is probably an knife nut, so he already knows what he's getting.

I haven't used my Caspian enough to really show a difference, but I have touched up the PE section a few times while not having had to touch the serrations yet.

[Mr Blonde]

I recall a visit to the SFO a couple of years ago. When you'd spend X amount of dollars you'd get a free Delica. I got three of those (I stopped by multiple times) and they were all CE. Must have been seriously overstocked.