We perform pre cycle inspection with documentation with additional inspection post any set number of cycles until the end of the test. For example, we inspected and documented 12 sets of PWBs as received. We cross sectioned two full sets then cycled the remainder for 250 cycles. These were inspected and documented. Samples were subjected to 750 additional cycles with inspection every 250 cycles. Post 1000 cycles two full sets were cross sectioned and documented.