Hmm. I tried Linear last night and it was *less* successful than either iterative or polynomial! It wandered all over and failed to converge at all. Maybe I need to fiddle with the parameters. Any suggestions, given that I have right around 90 steps of BL? I just tested it again and it's quite consistent, in both directions: reversal soaks up just barely under 100 steps and after that it just trucks right along.

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