works really well, nice work ELY!

a couple of minor suggestions:
- change the instructions to this:
that way the text for the link won't some ugly mess

- use the vars_wordlets_mods file instead of the vars_wordlets file so we won't have to update so much when we do minor ubb upgrade patches...
demo:
https://www.ubbdev.com/db/cgi/ultimatebb.cgi?ubb=newtopic&f=20 - you prolly won't be able to see this since you have to be authorized to post new in there, but it installs in ~20 min and works.