Originally Posted by
sdodd
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Personally I use the Park Tool DAG 2.2 (Derailleur alignment gauge) that is both a tool for testing alignment and buffly enough to allow you to bend. With half a dozen bikes mostly with steel dropouts it gets used often.
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I have both the Park DAG 2.2 and the Wolf Tooth Pack Hanger tools. I got the Wolf Tooth tool first as it appeared innovative and compact. After several unsuccessful straightening attempts, I bought the Park and have been very happy with it. (Park recently introduced a new model but I have no experience with it.).
I can't recommend the Wolf Tooth tool, unless you have a laser alignment tool to go along with it. (Having given it a glowing review, I do have one for sale
)
Now, back to the OP's quest to resolve his shifting problems.....