Number grouping problem

[Joseph_Oster]

I don’t have these bits either:

But it sounds similar to this thread ten days ago?

How to partition list for graft

The numbers are already separated into branches of 1, 2 or 3 digits (breps) so there is no need for Partition at all. Just graft the geometries (the Solid Difference ‘A’ input) and voilà! ~18 secs. [Tree Problem_2021_Jul7a] I won’t bother to upload the large file. It appears that you internalized both geometries twice? Making the file larger than it needs to be.