Make sure you are only including positions that help you. Common mistake I see is including tiny 2-3 month long positions, without considering whether including them is additive or not. It's often not.
Personally I'd consider undescribed gaps of 3 months in between the interesting projects unusual.
In fact I'd rather see "waiting tables" rather than nothing.
I'd rather see "waiting tables" rather than nothingAlso I read it as multiple 3 months gaps. I might have misread though.