Here in the Pnw we have Coryllus Cornuta which grows multiple trunks naturally. I suspect that a yearly trimming of most of the smallest base stems would improve the nut yield on older branches due to fewer "suckers," but then you could also periodically cut the largest trunk from the base for an additional wood yield.
In this way you coppice the whole stand more or less every year but only partially from each plant. Consistent nut and wood production.
