CyberDawg, i sear at 700 degrees + all the time. .. . in 5 years, i've only melted one set of gaskets, and that was when i accidentally left the egg at 700 degrees for over 30 minutes to clean the egg. . . trex and i have discussed this many times ... a shorter sear at 700+ (say 90 seconds per side on a 1 1/2 inch thick steak) plus a shorter dwell at 400 degrees produces a much different texture than when searing at 5 - 600 degrees with a longer dwell. .. .the meat will be done the same, but the texture can be very different (and i'm talking about NY strip steaks. .. .i think people melt their gaskets for two main reasons. ..one, they don't have a good seal between dome and base, letting hot gasses leak through gap (think challenger disaster in 86). ..and two, they leave the egg at 700+ for way too long. . ..i get my egg cranked up to 900 degrees or so, sear the steaks for a maximum of 3 minutes, then immediately take the egg down in temps. ...works fine everytime. .. .