I wick with rayon. I liberally thin the tails so as to not choke the ports. I generally get good flow but, I do get a fair amount of pops. I did try the shoulder method (cutting half the wick off close to the top of the coil). Didn't see any improvement but, I'm having second thoughts. I'm wondering if the shoulder will prevent you from pulling the wick away from the hottest portion of the coil when you stuff the ports. Your thoughts please.