I have used and like Zwickeys, Magnus, Ribtek, Phantoms, and Snuffers. I like Grizzlys but find sharpening them to be a minor pain in the posterior. My biggest deer fell to a Delma MAII(not a head I recommend due to ferrule splits but it worked fine on that deer.) I'm going Javie hunting in a couple of weeks. My heads? Eclipse. Is the teflon coating essential? Nah. Will it help? Maybe. I want to try 'em. if they work well I'll tout 'em simply because I like Blake Fischer and wish him success.