well I've given up on the synthetic lambs wool applicator...after second attempt I'm still left with streaking,even after all the "HOW TO" videos I've watched. Stirred the MINWAX CLEAR SATIN polyurethane for over 5 minutes, slowly and gently, properly sanded the floor (220grit) cleaned fanatically with vacuum,tack cloth, and finally damp cloth and allowed to dry overnite. temperature in the morning was 72F followed all possible advice and I still did not get good results. Should I attempt roller technique? or good experienced older man who was born doing this? I'm about to give up!