I am looking at buying a shop manual for my Mercury 80 HP engine.  There are two that I'm looking at.  One is by "Kallton C. LaHue" and the other is done by "Seloc."<br /><br />The Seloc costs about double what the other one costs.  Is there much difference between the two?  Or is a book other than one of those two better?  What are your experiences with either books?<br /><br />Thanks.