I would never back the Bombers. Definately not against probably the best team in the comp. Personally 10 points isn't enough for me, i'd be comfortable with triple that as i see West Coast have the ability to blow them out.
Why not parlay West Coast with say, the Yankees or maybe Federer.
One of my good fellow cappers is on the Eagles, so that gives me some great confidence to back them. Remember though if you don't feel comfortable in the play, don't bet more than you can afford.