The SL III 32SC has a 'soft power' function in the Main menu screen that says "This will prepare the mixer to be powered off". Is it OK to power off without using that feature first? Also, is it safe to turn it on and off using an external switched power strip? Our old analog mixer was plugged into a switched power strip along with some other gear, and our volunteers are used to turning everything on and off with one switch. I need to know whether that would be a problem with this mixer. Thanks.