Hi

The following is my rig:

VGA: 3 x Asus rx 480 8gb - no mod
Mobo: Asus Z170

currently, i am getting around 25 MH from each card for ether and around 300 sol for zcash
I keep switching from ether to zcash and from zcash to ether every 48 hours.
Do you think that this is a good idea? or i should keep mining ether until they switch to PoS?
What other coins can i mine with my rig?

thanks in advance.