Originally Posted by
RedC
I haven't tried Look yet but I'm having trouble clipping in with the Shimano and if the Look would make that easier I would be interested in trying them. I've hurt myself a couple of times by missing the pedal

The Looks won't help you with this problem. They are very slippery. I've never ridden Shimano so I can't compare them, but everyone I know who does says they're not nearly as slippery as the Look cleats.
(FWIW - I gave up on my Keo's after a year of use and still missing insertion about 1 in 5 tries, so I'm using CB Quattros now)