I admit that I don't understand Gas at all. But I think it is basically the currency which dapps use to interact with each other and the blockchain. Yes?
If you're creating a custom/private network, is there a way to set the required gas per transaction to be 2x the cost of the ethereum blockchain? I have looked at the chainspec and genesis files and the setting doesn't jump out at me as something obvious.
If you did that, would that mean more reward for miners? And would the tradeoff be that is is more expensive to deploy a dapp?