Great Info.
The reason I was asking because I saw the Claymore ZCash Miner info below. This is why I was trying to update to 16.12.2. After reading all the posts I think I'm going to try 16.9.2.
Anyone who is running 16.9.2 can you post your rates for Claymore ZCash?
Claymore's ZCash AMD GPU Miner.
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Latest version v12.4:
Catalyst (Crimson) 15.12 is required for best performance and compatibility.
15.12 does not support some Fiji cards, use 16.3.2 for them.
For 4xx cards (Polaris) Crimson 16.12.2 is recommended.
NOTE: For best performance on Fiji cards you must use 15.12 or 16.3.2 drivers. For newest drivers speed will be slower!
You can get bad results for non-recommended drivers, or miner can fail on startup.
Set the following environment variables, especially if you have 1-2GB cards: