I have never had to buy a service manual before and I was wondering if any of you could make a suggestion as to which service manuals are the best and why? I need the manual to cover basic maintenance, proper adjustments, and simple repairs for a 1992 DT40. I have read reviews about Seloc and Clymer alike but I would rather hear first hand testimony from the people who have actually used these manuals before I make my decision. Thanks for any help.