We have a large e-commerce site (10k+ SKUs). https://www.flagandbanner.com. As I have begun analyzing how to improve it I have discovered that we have thousands of urls that have uppercase characters. For instance: https://www.flagandbanner.com/Products/patriotic-paper-lanterns-string-lights.asp. This is inconsistently applied throughout the site. I directed our website vendor to fix the issue and they placed 301 redirects via a rule to the web.config file. Any url that contains an uppercase character now displays as a lowercase. However, as I use screaming frog to monitor our site, I see all these 301 redirects--thousands of them. The XML sitemap still shows the the uppercase versions. We have had indexing issues as well. So I'm wondering what is the most effective way to make sure that I'm not placing an extra burden on Googlebot when they index our site? Should I have just not cared about the uppercase issue and let it alone?