Ok guys im not a big welder by trade but I do need to burn rod from time to tim and until today my miller elite helmet has been nothing but great. I went to weld up some CroMo 4130 tubing today and the issue of my helmet flickering from shade 8-9 and occasionally going back to the grinding shade and going back to the darkened shade but it wont stay consistent and ive run through everything i can think of I switched out the batteries with miller ones from the LWS ive put it out in the sun for a while to charge it ive cleaned the sensors and changed the plastic lens and so far no change in how it acts so im looking to you guys the experts is there something im missing or is it a warranty issue i bought it just over a year ago???