I bought the low Sargent seat so I could really flatfoot the bike (12GSA) with SWMBO on the back. My intention was to revert to the OEM when solo. No way! The Sargents are really comfortable, I usually squirm a bit after two or three hours but I have done six with the Sargents without even a fidget!
There are two options for the covering material, CarbonFX and Griptex, I chose the latter but apparently it isn't that popular in UK because water sits in the pattern indentations. The same indentations keep ones bum aired!
They cost me £457 delivered, money really well spent!
PM me with an address and I will send you a pic.