I am getting ready to release a product to production which uses the MSP430F5515. I would like to secure the code and do understand how to "blow" the JTAG fuse. However, since I will be providing firmware updates to customers, and my firmware update process uses the BSL, what good does it do me to blow the JTAG fuse if my customers have a firmware update file that is plain text (TI.TXT format)? Am I missing something?