Single mining vs. Dual mining

Just wanted to hear your thoughts on mining ETH vs ETH/SIA dual mining..

I've noticed that since I started dual mining on my rigs, i've been having a lot more problems. PSUs have been dying, or I have been melting cables. GPUs dying, rigs running unstable, even with lowering clocks and increasing voltages.

Is anyone else experiencing similar problems with dual mining?

I'm having more downtime now with rigs on dual mining than I was with single mining..

Lets hear your thoughts on this..