First off the charts I’ll speak to are for the #1(large) size Slide Diver that measures about 3-3/4” OD. I believe the standard #1 Slide Diver comes with a 3 ounce weight.
So the depth chart titled 50 lb. Power Pro 3 oz. weight and using spoons is for the standard #1 Slide Diver. The manufactures of Slide Divers have additional accessory options to tune your #1 size Slide Diver. There are two different weight sets available. One weight set can be used with the standard #1 Slide Diver by removing the bottom plate and changing the standard 3 ounce weight to either a 2 ounce weight or a 4 ounce weight. So the depth chart titled 50 lb. Power Pro 4 oz. weight and using spoons requires changing the internal standard weight. Slide Diver also offers a 7 ounce weight kit that includes a 7 ounce weight and a new bottom plate that will accommodate the “Magnum” size weight.
Slide Diver also offers rings that will increase the diver diameter like Luhr Jensen does with their Dipsy Diver. There are two rings per ring kit, one #2 (narrow) ring and one #3 (wide) ring. So the depth chart titled 7 strand wire 4 oz. weight using an 8" flasher with a #3 Ring is for the standard #1 size Slide Diver that has been modified by changing to a 4 ounce weight and has had a large ring added to increase the diver surface area.
The Slide Diver accessories can be viewed at : http://slidediver.com/store/index.php?cPath=24
Slide Diver depth charts link: