stroker engine balancing

Thanks to you all who have replied.Monte,thank-you for the piece by piece description;guess I really needed to know the basics to understand the operation.I reread all the posts and they all are helpful.And,yes,I am trying to get away from adding metal.I read somewhere that the added stroke also adds into the balancing weight but not sure what that factor is.My next step would be to contact the crank sellers and ask what the bob weights are for their item.Thanks again to you all for your insight!Bob
lighter-better-faster