It *might* :D. Are they sending you a TC CLR head, or just a regular CLR that you plan on putting Ni or Ti in? Reason I ask is that in the non-TC heads, the 0.5Ω and 1.0Ω have different size airflow holes in the 510 pin. The 0.5Ω heads have a larger air hole (same size as the TC heads.) So...