I prefer the adapters, though I haven't used the Technomics. Modern compact bars work better for me than old style, deep-drop bars, because I actually use the drops on a regular basis, and the drops on traditional bars are too deep for me.

As for stem height, there wouldn't be a problem with the stem adapters I'm using unless you place your bars higher than your seat. I run 6cm seat-bar drop; one of the adapters is inserted as deep as it can go, and the other is maybe an inch above that. My adapters taper from 22.2mm to 1-1/8 inch; others have no taper, and might present a problem.