I thought I would post a few photo's in case anyone is looking to compare these saddles.
Gyes GS-17(Brown) and GS-06(Black)
With Brooks B17
with Brooks Professional
With Brooks B67
To treat them before use I put them in my oven. Brought it up to 170*. I couldn't find any cans of Proofhide so I used Dr Martens Wonder Balsam.
Lets see how they look in a year.