Very interesting
@FestitaMakool ...
I'm surprised at how the ETSC 2 "soils" itself compared to the ETSC sander. I noticed the pile of saw dust was smaller with the ETSC 2 but maybe that's because the ETSC 2 wears more of the dust.

The removal rate appears to be the same for both sanders inspite of the different orbit sizes, is that correct?
The photo of the ETSC 2 minus the pad is also interesting. They chose an aluminum fan instead of the normal plastic variety, I wonder why?
Here's a photo of the ETS EC 125 without a pad vs your photo of the ETSC 2 125. Note that both sanders use the same bearing/retainer/shaft assembly, 200017.