This works amazing well!
Added this piece to two Taz 5's and a Taz 6 and they can now all print Semiflex perfectly.They couldn't at all before.
I just used the Cura config for Taz 1-4 under "Semiflex" --> "high detail" found here: https://www.lulzbot.com/taz-cura-profiles (file --> load config or whatever in Cura to load it, or drag and drop into Cura. I think it'll overwrite your current settings though, so be sure to save that configuration.)
and then change the nozzle size from 0.6 to 0.5 in Cura under the advanced settings and hopefully your machine will print semiflex well also.