You're right. That's what I normally use. Sh=VQ/Ib. I omitted the b in this case and divided the lb/in result into the allowable shear force for the fasteners I'm using to determine the longitudinal spacing in inches. Thanks for the help.
What is the best method to calculate shear flow (longitudinal shear). I have a method that I have been using, I was just wondering if someone else did it differently. Just let me know if you have ideas.