I have a 2 member 7450 stack and I need to install an ICX7400-4X10GF module into each unit in the stack. I know each switch stack unit needs to be powered off to insert the module, but my question is: Does the entire stack need to be powered off and both modules installed at once OR can I maintain as much uptime as possible by installing the modules one at a time as follows:Power off unit 1Install ICX7400-4X10GF module in unit 1Power up unit 1Confirm unit 1 recognizes the new module and is active in the stackPower off unit 2Install ICX7400-4X10GF module in unit 2Power up unit 2Confirm unit 2 recognizes its new module, all is happy, and the stack is fully functionalIf this will work, the switch stack never totally goes down and the dual-homed devices connected to the stack will continue to function. Does this sound like it will work or will the stack get upset that one member has a module while the other does not? In the end, the hardware configuration will match, but there would be a short time where one unit has an ICX7400-4X10GF module and the other unit does not.