The owners manuals are a bit vague in some aspects as to string size. In the specs section it will give you a size, say .095, but then in the loading the string section it will say to the effect of "specified size no larger than .095" which implies you could go smaller. Several on this forum are using .080 and seem to be happy with it. I believe a few have tried .060(?) or so but not sure how satisfied they are with that smaller size.