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First off, welcome looks like you are new.
Second, label you boards in some why so that people can reference them more easily in reply.
Depends on what you call high grade. The board that held a DLP chip is high peripheral as is the board with two chips on each side (may fall into a higher grade, based on chip per surface area of board and depending if those are gold connectors, hard to say with these really tiny boards). The others vary from mid-grade to low peripheral. The videos are worth watching and Chris explains a lot as to how the grades are made.
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