If you go with an E-TEC, check out this web site:
http://www.etecownersgroup.com/. It's the CSC of the outboard world! Several very knowledgeable techs on there who can answer any question you may have in addition to those you haven't even thought of yet! Check out this post by a member who switched from F225's to 200 HO's:
http://www.etecownersgroup.com/post/...9&postcount=13