Well not actually RLM for giants, I apologize. 85% of bettors are on the under and the line in all books stay at 9. For Cubs 60% of the bettors are on the under and the line goes from 9 to 9.5 in all books. Take this info and use it anyway you think benefits u
In my experience I believe that in the Cubs situation while more people are on the under, bigger $ is on the over. Mainly because of the "over night" pitching change. R.Ortiz hasn't been a starter for quite some time. So, the "big $$" guys think the over has an edge. 60% really isn't that big of a deal to consider the over a strong "smart $$ play" though either. This is all in my opinion -- (IMO).
I'm interested to see how that one panes-out! Good Luck!!