Mark IV send levels with T.C. G-Force

[Mark Fore]

Just curious for those using a Mark IV with a T.C. Electronics G-Force... what levels do you have your sends and receives on the G-Force? Do you go for unity gain so when you switch it out of the loop you have the same volume or do you juice the output of the amp and turn down the output level of the G-Force? Any opinions would be appreciated. Thanks!