My name is joaquin.
You have all the AstroRudi reason, we would have to plant and not buy any optics until we have the guarantee that if the optics do not meet the requirements that they mark they could be returned.
In some stores they tell you that you can only return if you have some manufacturing error, but if the quality is not what you offer you stay with it.
They would have to bring all the mirrors and telescopes some proof of optical quality and so we would not have to wait for them to analyze them in particular.
Greetings and happy new year.