Tig will also crack as well, just not as prone. Don't ask me how I know. "If it was me", I would PRE-HEAT entire cluster with a rose bud, TIG weld, and POST-HEAT entire cluster to normalize the weld. Pre and post heating will emliminate the stress risers next to the welds that cause the cracking.
Mike
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Mike Redpath
Musclerodz & Customz
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