I sent my stock seat to Spencer ( http://greatdaytoride.com/Home_Page.php ) and when I got it back it looked exactly the same. Thing is it felt completely different and the mod he does costs about 50 bucks. One of the best deals in motorcycling.
The main issue (in my opinion) with the stock Brutale seat has to do with the foam density. It is way too soft, especially for a heavier rider like myself. After about a 100 miles or so, they do not offer much support.
So, replacing the foam with a higher density foam makes good sense to me.
I sent my stock saddle (& pinion) to Sargent, along with some pix. What I got back was pretty amazing! They incorporated a Tri-Colore on the saddle and a red 'V' on the pillion (they did the design). More importantly, the comfort is much better, and the price was very reasonable.