Hello Greg you have built wheels before? I would suggest a visit to your LBS with your hubs and inquire if there is a fee to caculate the spoke lenght. no I am assuming that most bike shops stil have a Wheel Smith spoke calculator system.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk