I've done quite a few myself with never an issue. That said, if I had a vibration or something didn't feel or look right, I wouldn't hesitate to have it gone over. If it's phased correctly and you've verified that the yoke is square in there, there is no reason you can weld it as well as a shop (assuming you have reasonable skill in that department). Therefore the only thing you aren't equipped to do is balance, and if it's that far out, you'll take care of that anyways.
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