[doorgunner69]

So, the holes in the slats are there to dissipate the early detonation if there is one?

[Robert A Cook PE]

The holes in the slat armor are to reduce weight. The incoming round hits the edge of the plate and breaks up, so holes in the middle of the plate don’t degrade performance very much. More weght = bigger engine or less speed, and so less range.

[2CAVTrooper]

The actual slats are only 1 1/2 to 3 inches wide depending on application and manufacturer. The holes in that one pic are probably there for tread purposes.

Here is a good pic showing typical slat armor

https://goo.gl/images/Arb5eg