I don't know if unit's heal faster in sentinel mode, but they definitly heal better while in cities.
Also, all tiles within a city's growth radius are worked by the population... but only according to a certain percentage. (I don't know the percentage, but I'm sure someone around here does).
(Note that the manual recommends placing tile improvements close to the city as these are worked first).
-- Skeeve
------------------
My reach exceeds my grasp!
|