Great video. I’ve been wanting to do a more crude test myself with a leaf blower and rocks too. VERY surprised to see xpel the thinnest. Very pleased to see STEK as the most durable film between xpel, suntek & stek. I haven’t used scotch guard only because I thought it didn’t look good but I will try it based on this video. Thanks for the hard work!! Glad I stumbled upon it.