This one is for you sporran makers out there.

I've made a few sporrans myself, but one thing seems to elude me when it comes to making the soft sporran found in "So You Want To Wear a Kilt." I've only made two of them, and both are of the gray suede variety. I can't recall which weight the suede is, but it isn't as soft as I'd like it to be.
They say imitation is the sincerest form of flattery, and as such I really have in mind something resembling one of the beautiful pieces that comes from Freelander. When I look at his, the leather seems to be a very soft and supple leather. My suede sporrans on the other hand do not have the same appearance.

The question here, now, is what weight leather are those of you who are also imitating the Freelander using? How thick in inches (or millimeters, if you so desire... I'll just have to convert to measurements I understand ) should my leather be?