Interesting. What size is the frame? How much insertion are you getting before it bottoms out? How far above the headset is the min insertion line?
I suppose the additional leverage of the technomic demands a deeper insertion. If you could figure out a safe ratio of insertion to exposed quill (which I suppose you can derive by measuring the stem you have), you could always cut the Technomic down slightly. I don't know if you'd have enough threading on the bolt that way, so you'd possibly need a different bolt, or a means of cutting more threads. Maybe more trouble than it's worth.