Alot of good advice up there.Pinless blades do yake some getting use to.you will find almost each time you change the blade you will have to adjust the tension.If it wanders to much its to loose.I always move it with my fingers.if I can wiggle it more than a little,than it to loose.But that is just me.I have been scrolling for 10 years. I hope we have been some help to ya.