Proxy config for easier captchas?

So i have been using squid for my private proxies for some time. Lately it seems that even if i have fresh never abused proxies that i am getting the increased difficulty captchas. My proxies can pass as 100% elite anon on any test, but i think that that maybe the problem. The captcha service ( solve media and recaptcha) can tell that it is a proxy, even if it is fresh and then gives you very sqiggly captchas.

My settings have always used the Deny all in the headers in order to get elite anon rating. Has anyone with more experience with squid had luck maybe spoofing realistic headers in order to not just hide your personal details but actually hide the fact that your using a proxy? Let me know if anything has worked for you guys.