I know you say that you wanted a double. but I found I could conceal a single horizontal better. And if you are carrying a 26 I am assuming that is an issue for you. Check out Dale Fricke holsters. He sells double as well as singles in both configurations.
I like and use Comp-Tac and Raven Concealment holsters and mag carriers and cannot say enough great things about them. I've moved from a double-mag carrier to using 2 single mag carriers since they are easier to position on your belt. The Raven carriers are probably a touch more concealable but the Comp-Tac carriers are by far the easiest to put on and off the belt. I'd recommend either.