Doing workbooks over and over can make you pass the CCIE RS lab?

in CCIE
Well the title itself says it all, how true is it that if you just do the lab workbooks ie INE, Narbik and just go through them over and over is enough to pass the lab exam...any thoughts?
Comments
Yep I've done the written. Why Cisco 360? Is it just because it gives you the "feel" of how the actual lab exam is set up?
Because I create configs from scratch for both routers and firewalls, I know exactly what is required to make it work and it makes the troubleshooting process faster.
BUT, you need to be able to work on large setups in a reasonable time in order to make sure its 100% correct and as accurate as possible. that is the difficult part: verifying everything.
of course, you want to be prepared for anything that might appear, so you wont be repeating your labs. instead, you will use the workbooks to get familiar with a given setup and then work your way to different ways of accomplishing the same results, doing unusual stuff, creating new setups, and etc. have fun with it
I like to make labs more complex, by using same AS numbers on different sites, backdoor links, authentication, qos, etc etc etc.
Try to do things in a different way every time. It also helps.