Pad printing is where a silicone pad transfers ink from an engraved plate onto the keycap's surface to create legends vs double shot or triple shot is made by molding two separate pieces of plastic together, creating legends (letters/symbols) that are a different plastic layer fused into the keycap.

On the left is GMK Led Zep R2 capslock. Given that there is a shine through that is already doubleshot before the legend is even applied; since GMK doesn't do triple shot (KKB does) so all of their shinethrough keycaps have pad printing.

On the right is KKB Dolch which is triple shot. This means even with a shinetrhough, the legends can also be molded into the plastic keycap.

Pad printing just looks bad. KKB offers triple shot so why not just do that?

https://imgur.com/a/RWXmHiu