Build Consistent Baseline Groundstrokes

Example proof for "Reach 3.0 Tennis Rating". It shows the kind of work this milestone asks for: Submit a video showing two separate rally sequences: (1) at least 8 consecutive cross-court forehand groundstrokes with a hitting partner, both shots landing past the service line; (2) at least 8 consecutive cross-court backhand groundstrokes with the same standard. The video must show both players and the ball landing zones. Include the name of the hitting partner and the court location.