Thanks and Thanks! Some friends have been kind enough to let me charge them for just material, so I've been testing the production on the bags they bought.
I'll try neatsfoot on the Sedgwick 4-6 oz and see. So far, have a good supply of it but I feel guilty wasting it.
However, talked to Cobra yesterday, David there gave reasonably convincing explanations as to the difference between them and Cowboy. So, likely will go Cobra. I might be able to make accordion gussets with 4-6 oz, but when that supply runs out, I'll still need to cut them. Plus, I'd like to make wallets with Sedgwick. W&C is convenient as they split for you, but they're very soft.