Should have read all the posts. But just some thoughts;

If you can't find the correct height front......can Novack get you a higher rear sight.

Or;

Have you tried lining up the dots ( ooo ) vs the traditional tops of front and rear sights. From the pictures that looks like it will pull your front sight up.

Also, in a flash sight picture the front sight is often easier to pick up if it extends above the rear.

So, unless you are planning to do headshots with a hostage......