I’ve even done thoughtfully as you can load large and small bales without front loader. Here is my BallenFux with which you can move the mouse control arm around the bale rests. You can load large and small bales.
The movable arm should not hold the bale squeeze only. Power to overtighten the balls he can fly in the air arm. So make the arm only so far down until it lightly touches the bale. The bales hold then Automatic.