Yup
Tayana (TaYang) and Ta Shing) were and remain the 'good' ones as Perry
was deeply involved with both.
Many of the others simply stole the designs, didnt know the true intent
nor the implication of the intricate details .... and not much about
boat building, etc. Same thing going on now with semiconductors,
machine tools, etc. etc. etc. etc. etc.