2. I would say a one week cut is fairly worthless as the time frame too short to make any meaningful progress. A lot of water and glycogen would be lost and regained causing large swings in weight and the fat loss differences very hard to measure. If doing a mini-cut during a bulk I would make it four weeks minimum. Whether you have one or not is up to you. In coaching, some people want one, some people don’t; some people can handle having one, some people can’t. There are no blanket rules (which comes back to my never/always comment above).