Tencent Hy3 on Strix Halo: 10 tok/s Baseline, MTP Doesn't Fit

Hy3's 299B MoE runs at 10 tok/s on 128 GB Strix Halo in baseline mode, but the MTP speculative head that gives CUDA users a +27-37% boost can't allocate on Vulkan unified memory. Here's what worked, what didn't, and why.