After finally finding the correct section (that sight is not the easiest to navigate) it would appear you are right. Still less of a job than a Floyd though.
"less of a job" my ass hahahaha.
Theyr amazing trems i'll give you that, but every tech i've met HATES them. They're a huge bitch to work with and set up, and their arms break off really easily.
the only whammy that i know doesnt require routing is the StetsBar. It only fits on guitars that have stoptail/tune o matic bridges... unless you want to cut holes for it. I havent tried it, but i'm not sure if it has the range of a kahler or a floyd...
EDIT: i lied... seems they have new models that can fit Telecasters, and have a model that will need routings...
the stoptail and tele bridges dont need routing though...