Grado makes like 4 different pads.....the 80's come with the s-cushion. RS1i comes with L-cushion.
Each pad makes the sound change.
Some people have a problem with comfort with some pads...other people don't.
A washing of the pads with mild soap soften them up.
The RS1i headphone only weighs 9 oz. it is super comfy imo.
These are like the s-cushion....but made by sennheiser
These are the L-cushion
These are the flat pads by TTVJ
These are the G-cushion
Each pads changes the sound alittle.
The flats pads add bass...the G cushion gives bigger soundstage and so on.