We are currently testing MOAMiner on a rig with many mixed cards and do some bugfixing because of gpu-ordering issues. There is already a new testing-branch available which will some of those issues. So if you have some mixed rigs at your disposal and had problems with MOAMiner, you may try the new TestingBranch available.

In the process we also discovered some quirks with the current Setup Assistant, which should be resolved in the next official update. Let us know if you have any problems during setup, so we can help out or deliver hot fixes asap.

It's also pretty easy to adapt your installation for new algos and miners - but some of them may need some bit of tweaking and we make it easier as soon as we discover something wonky.