I shipped bike to another Biktrix Customer and never used saddle
I was charged for a replacement seat. Not the seat I ordered. I received a refund.
I ordered the extra wide saddle to provide additional "Tush Cush". However, the standard seat was just a bit narrower, and offered both gel padding and spring suspension; which the wider saddle didn't. I ended up using the stock saddle and I'm quite happy with it.