(1) length, not lenght. Maybe just run a spell checker over it all so you don't have to worry too much.
(2) merge the /help page with the measurements entry so one doesn't have to make a temporary copy of the measurements while reading the help.
(3) girth, not grith (on the measurements page)
(4) a ``symetrical'' option for the measurements entry
(5) enough, not enought (in recommendation details)