I do agree that PBMG has or might be doing some product sharing. I also believe much of the products from different brands that are not associated with PBMG share the same product too. Branding is big and the marketing makes it bigger. That's why there are so many different Meguiar's products but probably have the same product.
That is why I test out many different brands and come up with own my conclusion whether I will use them or not. If it is a good product I will use them. So do they re-label IMO yes. However, I will continue to use it if I believe they make a great product. Overall, I am satisfied with PBMG as a whole and I am in your camp of re-labeling, however, as long as they make a great product it is OK.
In the case of the Black Label SRC, I recently donated it as I found a much better product IMO and that is Menzerna's FG400, IMO blows BF SRC away.
So if you do have concerns you can go that route. I did based on performance and experience of product. I will still buy products from PBMG just not BL SRC.
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