Reefocto, ASM, euroreef are all basically the same. Nice skimmers, but the technology is as old as skimmers get.
Not that there is anything wrong with that, but I see the pricetag on some of these and I think that you could find an AquaC skimmer that would pull more darker stuff than those for a more reasonable price.
You just have to look around for what suits your needs really though, I really like my EV400 skimmer.
Whatever you do, oversize to the max...the bigger your skimmer the better.
My problem is finding a decent skimmer that would fit in the space I have in my sump...I am definitely open to other alternatives. It will be awhile, if at all before I upgrade the skimmer. I might be moving this whole tank into a 90 g if I decide to sell my frontosa colony.