TIF2,
Really sorry you had a bad experience w/ Corbin/ I've owned two Corbin saddles. The first I inherited on a bike I bought when living in Santa Cruz, CA - it had a custom Gunslinger w/ black leather and white leather flame stitched in... I went in to Hollister and they took my saddle apart and re-shaped it to fit my bum. No charge. This was back in 1998 (I believe).
Since then I bought my CVO Softail Springer (2008) - and the first thing I did was take her in to Corbin to have a custom Dual Touring saddle built for us. I'm fortunate enough to be about 90 minutes away from the Hollister factory ...
I have to admit that the Corbin website is pretty ... bad. You have to wade through lots and lots and lots of pix on various bikes to get "ideas" on what you can do. It's pretty overwhelming when you consider all of the options. The online configurator helps a lot. But it still is lacking in a lot of ways too.
All of my interactions with their customer service/support people, and the techs custom building the saddle were very positive. I know it really sucks to have a bad interaction ... first of all, receiving a product with a "feature" you don't want and didn't realize was "standard" ... and then having a poor attitude flung at you when you try and get it corrected....
One generic suggestion I'd make when purchasing high dollar, highly customized parts/pieces/add-ons/accessories/whatevers (!!) ... spend way way more time researching it than you think you should. Look at lots of pictures ... read as many reviews as you can ... pick at every tiny detail you see in the pix. As far as I recall (I haven't looked with this specifically in mind...) ... all of the pix on the Corbin site have the rider seat flap shown in all of the pix.
I know this doesn't help remediate the bad interaction or cash outlay ... I don't work for Corbin ... and I'm not trying to defend them - but I too have missed "important features" on high dollar custom stuff, and been frustrated at both myself, and at seemingly unclear product information/description, etc. It's never very fun to deal with !!
I hope things are back together and the way you want now ... and you can go ride and fuh-getta-bout the problems !!
~~shane