[tor-relays] switching between exit and guard

Hi there, now I am getting abuse mails nearly every day and digital ocean looks like getting pissed off. Is it technical possible to switch between exit and guard so I only run an exit for 14 days a months (less abuse mails per month if it is a exit only 14 days). Or is this a really bad idea? Markus PS: I am also getting my first bullet proof exit note tomorrow ... lets see how this works out ...