Hi Aaron,
If you want to do double-check your configuration, I can recommend the OWASP cheat sheet (https://www.owasp.org/index.php/Transport_Layer_Protection_Cheat_Sheet).

Also this SSL Server Test is pretty useful: https://www.ssllabs.com/ssltest/index.html

aaaaaaand, don’t use ModRewrite, Apache recommends Redirect:http://httpd.apache.org/docs/current/rewrite/avoid.html#redirect

Keep on going with your blog, I’m a regular reader and like it :)