OK, so I called ES and presented my concerns with their ball joint boots.
The guy explained that they actually have a lip on the inner edge that will snap to the ball joint. Once the suspension is placed under load, it further commpresses the boot and creates a very solid seal that will not leak or allow dirt in.
With that, I headed out to the car to give it a try and was rather impressed and have decided to stick with the ES boot and use it rather than the oem.
I'll have to admit, I was a little skeptical at first. Just looking at the ES boot, they don't seem worth while but then I could tell by touch that there was indeed a slightly curlled inner edge that acts as a lip. It snapped on just fine and creates a perfect seal and even more so under load.
After all, the oem tie rod boots seal in the same manor; they don't have a snap ring like the ball joints, they just slip over a lip. So I will give ES boots a try until something goes wrong.
Not to mention, it looks so much better then those big fat squished rubber boots