OS X V10.7 Lion :: Import All Contacts To IPad 1 From IMac?

My iPad [1] IOS 5 has a number of duplicate addresses, but does NOT include *all* my Contacts from my Mac.  My Mac is OSX 10.7.   I have selected iCloud as my storage, not 'my computer'I have tried deleting the iPad Contacts [iCloud>slider 'off']  but when I return the slider to 'on' the Contacts are repopulated, but with all the same duplicates and omissions as before.  I have allowed a time delay; tried restarting the computer; nothing makes any difference. I am reduced to sending myself emails containing the missing addresses! In additon to the above... Pt2:  the duplicates in iPad Contacts have more - eg repeating the Home address - or sometimes less, information. and if I add a name to a Group, there is immediately a duplicate entry created in the main address list [I could have >8 duplicated entries for one name if added to several group mailings] Deleting duplicates is pointless, as they reappear.

Info:
MacBook, Mac OS X (10.7.2), iTunes