Is it hand quilting or machine? I can't imagine doing a small stipple by hand. If it's machine and you are good with straight lines then I think I would continue with the cross hatching. I do have one word of caution and that is crosshatching can be difficult over long distances to keep straight. If you are going to match the angle of the crosshatching to another border, I would lay several loooong pieces of painter's tape to check the measurements.... BUT it is your quilt and it's going to be lovely whatever you decide to do!