I mean the wrap holding the guide on, not merely as an underwrap or trim band.

The HT threads are every bit as strong as the others.

TITLE: "Gudebrod Thread Table: Strength & Weight of Guide Wraps for Size 2/0 - E" ... For general reference, a Table of Calculated Strengths and Weights of UNFINISHED Gudebrod Thread Wraps for Sizes 2/0-E, for Silk, Regular Nylon, NCP and HT Metallics, assuming a thread wrap bandwidth of 1 cm, around a rod blank of circumference of 1 cm (OD = 1/Pi = 3.18 mm), is available at: [www.rodbuilding.org] (Calculated values, not direct "in-situ" measurements. -Cliff Hall+++, Gainesville, FL-USA*****

Just be careful of how or what they rub on before going onto the guide. The covering can get pulled off rubbing on some thing ruff.

I just finished a rod using this thread......strongest stuff I've had to cut so far. The razor blade didn't want to cut it when I finished the wraps. I used a nail clipper instead.

I maybe missing something here, but I didn't think Gudebrod made a HT Holographic thread. Just Holographic braided thread. HT metallics are fine to use. However if you are using the Prizm holographic thread, then I would say it is not a good thread for the guide foot.
Rob

Boston, MA