The simpliest way is to run 2 instances of mining program. One with high intensity the other one with very low intensity, each mining to it's own/different address all the time.
That's a pretty bad idea as those two instances will now be fighting over CPU and GPU resources not being aware of each other. Don't do this, ever.
Funny, I do this all the time, running two instances of the same miner program, at the same time, on the same hardware, both instances using the same GPUs, with different algorithm settings and intensities.
One algorithm memory heavy the other one core heavy, both mining to my own wallets and in the end I make more when those incomes are added together, than if I was just mining single algorithm with only one single miner instance.
I really dont care whether those two instances are "fighting", as you say, or whether they "like" it or not, or what they do.
All I care is that my rig is running rock stable and in the end I make more that's what matters to me when mining.
But of course everyone is free to do what he believes is best for him and his rig.
