I don't usually carve in pairs, but I need to stock up for some upcoming shows. It was interesting because I used basswood from two different sources. Though they look similar, side by side there is a slight color difference. The more grey colored one was slightly harder and seemed a little less prone to chip near details. That was the wood from Heineke Brothers. The slightly paler, softer one was from New Hampshire. I also used slightly different tools for carving each. Honestly, that didn't seem to matter much. They still took the length of time to finish they always take, so no real advantage in doing multiples for this kind of work.