I would always use the tag path way and would avoid using UDT template parameters altogether. I’ve been bitten before when a new UDT was created which was fairly similar and I wanted to reuse the same templates and detail pages, but due to the template and page using a pre-defined UDT parameter, I couldn’t. I ended up re-coding these templates and pages to instead use the tag path which allows a lot more flexibility in the future for reuse.