Working with Salpa reinforcement

[CFons]

Hi Everyone, not long ago I got a sample of Alan Sully goat leather, one in 3 ounce and one and 2 1/2 ounce. I was thinking I’d like to make a medium sized bag with these using reinforcement and was thinking of using Salpa. I noticed that Salpa comes in several different thicknesses including 0.5, 0.6, 0.8 mm. Does anybody have any suggestions on what thickness to use? I was thinking of getting some 0.6 mm but I wasn’t sure if this would provide enough rigidity to the bag. I hesitate with 0.8 because I don’t want it to be really thick in the end. If anybody has any suggestions and experience working with these products I would love to hear your feedback. Thank you!