No, I prefer to stay with the "Official" / current version and wait till most of the bugs are resolved.
When my cards were mixed up I've also set the opencl-index and cuda-index manally, but they both need to be the same number for each slot.
So probably for your Slot 0: opencl-index = 0 | cuda-index = 0
And Slot 1: opencl-index = 1 | cuda-index = 1