hello all again. I took the advice and am improving with practice but still have the usual novice questions: Am I using a proper blade? I inherited this saw from an uncle and am using his old blades and I don't know how worn they are. Also, I'm almost clueless and just guessing the 'darker' blades are for metal and the 'bright and shiny' ones are for wood? Regardless, I'll buy new blades at the store tomorrow. Web search results in alot of shopping info and where to buy the stuff but product descriptions are brief and limited. I'd appreciate a point in the right direction. Thanks to all again.