Ethereum Payment Processing Configuration

[BitWizJason]

I am new to Ethereum and mining pools in general. I am trying to figure out what the best payment processing configuration is or at least better understand it.

The example configuration in the repo shows:

"paymentProcessing": {
    "enabled": true,
    "minimumPayment": 1,
    "payoutScheme": "PPLNS",
    "payoutSchemeConfig": {
        "factor": 0.5
    },
    "gas": 21000,
    "maxFeePerGas": 50000000000,
    "keepUncles": false,
    "keepTransactionFees": false
}

1. For payoutSchemeConfig.factor the example sets it to .5. In the code it defaults to 2 which I believe is what the URL mentioned in the comment recommended. For what circumstances does a smaller value make more sense?
2. Any thoughts on using eth_estimateGas to automatically set the gas instead of hard coding it in the configuration?
3. Is the example value for maxFeePerGas a good average value or is there a good way to determine what this should be?
4. What happens if maxFeePerGas is set to low and the transaction gets stuck, dropped, or fails? Are the two conditional exceptions meant to handle these scenarios?

Any help or advice is very appreciated!

[oliverw]

Some type of Gas fee optimization is already in the code base thanks to @Konstantin35. See 7a10969

[Konstantin35]

Hello @BitWizJason , please read this and I think it will become clear to you how it works
maxpriorityfeepergas-vs-maxfeepergas

[BitWizJason]

Thank you @oliverw and @Konstantin35! Here is the full page version of that same article in case others come across this discussion. I also found this guide send-tx-eip-1559 from alchemy which was very enlightening. I still have questions about some of the things I stated above but I will play around in the code, run some transactions and see what happens.