Ditto on Shrink's comment. Olympic used to be my favorite book, but their lines leave something to be desired. I rarely place a baseball wager with them.
However, Olympic is good for:
1) Mix & match multi-sport parlays
2) Posting lines VERY early
3) Posting a variety of half/quarter lines
4) Posting moneylines when some books don't
5) Paying you ASAP
Anyway, if you have 3-4 outs, don't know why you wouldn't include Olympic. Very safe, very solid.