King_Fisher - 6:35 am on Apr 10, 2007 (gmt 0)

I don't know if any one has the real answer to this, just opinions.

Most pros say the more the merrier and will run the list over a

a hundred and beyond. They will do misspelled, negative, plurals

etc,etc. I personally to somewhere between 10 and 20 and call it

good enough. Maybe I am lazy, but thats just me.