Dear MXA,
Is there any technical advantage to a titanium head pipe over a stainless steel head pipe—other than weight?

No, just
the opposite. A titanium head pipe is lighter, usually between one and
two ounces lighter, but in our experience titanium head pipes are prone
to more rock damage than stainless steel. Why? Most stainless head pipes have a
1.0mm wall thickness, while titanium head pipes use a thinner 0.8mm
wall thickness. The thinner material dents easier (especially when
heated to an almost annealed state).