Instead of striving to improve their lacquering skills, the students of those former accomplished masters who were now in charge colluded with the eunuchs to steal lacquer ware from the palace and change the marks on pieces made during Chengzu's reign so that it appeared as if they were made during Xuande's rule. They were able to fool the emperor by offering him such pieces.
不求長進的徒弟便勾結宮中的太監，偷出永樂時期製作的剔紅漆器，將背後的大明永樂年制磨掉，改成大明宣德年制，以此上貢交差，欺騙皇帝。