Cross-welding Pipe to Avoid Warping

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When welding an elbow onto a straight piece of pipe, which method is best to avoid pulling?1) welding the left side, right side, top, then throatOr2) welding lower left, top right, upper left, lower right (making an "x")These are the more common methods I see used at work. Which is more fool proof for a critical project? Anyone else use other methods?This is Tig welding sched 10 stainless at around 75 amps BTWThanks for the help in advance!Last edited by millerj5944; 12-27-2013 at 09:31 PM.