Best Shape for Bale Grabber

I need a FEL grabber, primarily for wrapped round bales and noticed different designs. Wifo & Anderson are C-shaped and conform to the bale while others have a narrower, straighter shape and also, tend to be a lot cheaper. It appears that the straighter design would make it easier to stack/unstack the bales close together. However, the Wifo dealer advised that I should get the round shape to prevent the plastic from ripping. Anyone have experience one way or another?

 

Thanks

 

Best Shape for Bale Grabber