SHIB vs. RVN mining

We have been using NBMiner and shifting to TRex to mine SHIB.

Is it possible to use our Unmineable referral-code with TRex batch/script file?

Also, due to ETH outrageously high GAS FEES, we are thinking of migrating off SHIB to mine RVN (and mine via ravenminer to avoid the 0.75% Unmineable mining fee).

Has anyone gone through the same thoughts/exercise?