The switch from regular deadlifts to stiff or rack pulls at this stage is generally made so that the system-wide stress on the body is reduced (or to focus on weaknesses). So, if you are truly being run into the ground with deadlifts, then I might hold off on 5 regular deadlifts for medium day. However, the fact that you decided to stop gaining weight is likely the primary factor in progress slowing down. If you then decide to cut, you will run into further difficulties if you are trying to make gains; exercise selection won't override that. It would be best to view the training as having a goal of preserving as much muscle and strength as possible during the period you are cutting.