From a view of a customer, this is a very bad practice, I mean:

1. making good cells, and getting them tested to let people see, that it is good stuff
2. changing cells under the same wrap
3. telling nothing about this to the customers, just letting them discover that, only if they are extremely aware (e.g. Mooch or HKJ)
4. differences only unveiled later, when ‘accidentally’ a re-testing happens
5. customer feels himself/herself fooled