I'm actually in the same boat as you man. I carry a Neon in M390 often when I'm not at work. The 1508 speaks to me, too. If you haven't watched it yet, you should check out EpicSnuggleBunny's review of the knife; it's one of the better reviews out there.
I feel it would be a great option to give your Neon a break. Similar blade size, weight, overall length, and it's flat ground which is a huge plus.
On a side note and somewhat related, I just got a WE Knife Co 704 in carbon fiber. I'm blown away. It feels like...are you ready?...a Shiro. Yep, it's a good one. Not as smooth as those immaculate roller bearings, but damn close. It's so light too...disappears in the pocket and the hand.
Anyways, keep the thread going. I'd like to hear if you find one and how you feel about it.
Best,
Robert.