Your first run should prove the loop, not chase secrets
Open the exact game, finish one train-cut-sell cycle, and spend only on the next visible improvement.
The official Roblox metadata for +1 Cut Grass Adventure confirms Strength, Grass, Loot, Cash, Cutters, Upgrades, Rebirth, and offline earnings. That is enough to guide a first session, but not enough to publish exact formulas or universal best picks.