I've had the new Razors for a few weeks now and would say they are far above the older SLC's....without a doubt.
I know this may come as a surprise to sum of you, but I had 10 guys look through the SLC HD's, Razor HD and Zeiss Victory FL's and Zeiss Conquest HD's and several of the users picked Vortex. This has pissed off a few of my friends as some of them bought Zeiss Conquests, but they are now sending them back because the Razor HD was far and above anything in that price range and comparable to the big 3.
Last scouting trip I was on my partner had the new EL's and I brought the Razors....I saw no difference in light gathering in the last minutes of glassing! The other thing that was impressive about the Razor HD's was the durability. I dropped them in the bottom of the pool for 30 minutes and they zero issues. I have also dropped them a couple times (sorry Vortex) and again, no issues.
My life has been crazy lately, but I will get some photos up as well as a full review in the next couple weeks, but I would not hesitate to purchase the Razors at all!
They will be on my neck this season for sure...