After having some problems with a handbuilt wheel by a respected local wheel builder that I paid what I considered a premium price for I have tried wheels from Nashbar, Performance and QBP. Some have ridden many miles with no attention at all. Others have required a little tweaking. I feel certain I could build a wheel myself, but I don't get enough wrench time as it is. I prefer to let someone else do the grunt work of assembling the wheel then I can tension and true it up myself as needed. My experience with such wheels has been quite satisfactory.
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If it ain't broke, mess with it anyway!