I don't know about you guys, but my xbox image is only 450mb. i usex winhex with compression-feature. Ok, i have never restored the hdd with it, but im quite sure it would work. The first time i tried backing it up i didn't use compression and the image was over 9gb, so i thought why not doing it with compression, and it became around 20 times smaller

Isn't there a compression-feature in hdd_driver?
I've got two questions;
1. I'm going to use some of the exploits, not sure which yet though. If i keep my original hdd, and install a new hdd, can i ALWAYS go back to the original drive if something happens during the exploit-installation(or sometimes after, say i get an annoying loop problem). Or can something happen permanently that makes it impossible to go back to the original hdd?? can i always make sure i'm on the "safe-line"?
2. if i install some of these exploits on a "new" drive(old really 20 gb, but i'm using it too see if i will get the exploits to work, and if it works i'll buy a big hdd) can i run it in the xbox as it is(unlocked), or do i have to lock it to make it work??
PLEASE ANSWER BOTH QUESTIONS!!(or i will have to re-ask them which destroys the threads)