I've read halacha concerning mesh tallitot, that the baracha should not be said when putting it on. But, does the baracha "l'shem mitzvat tzitzit" need to be repeated when tying tzitzit to a mesh garment? I ask because I offer free tallis repairs and tzitzit replacements for my congregation, and a young man who plays baseball has asked me to replace the Ashkenazi tzitzit that came tied to the mesh garment with Sephardi 10-5-6-5. I'm happy to help, just wondering if anyone can help hunt down halacha. Thanks!