1. I decided to do the 20 Chip version.
It means more work for me though, have to redo parts of the design.
I hope it means that there will be two versions: 10 and 20 chip...
I've ordered olny 10 from zefir based on this thread..
I guess there are more people like my wanting only 1 board with 10 chips because there are many single orders for 10 chips in zefir's batches.