My ecommerce [www.vistastores.com] website does not have issue due to change or URLs. I rarely change category page URLs and product page URLs. But, I'm facing issue due to narrow by search. If any attribute will remove from narrow by search so 100 pages will convert to 404 due to dynamic structure. That's why I'm setting up 301 redirect to category page URLs from all dynamic pages.
I have concern to reduce 301 redirect and broken links in website. But, I'm not able to stop it. Google may restrict my organic performance due to continue broken links on website and non associated 301 redirect.