Can I do this?

[laakness]

Right now I have the stock ATT Tilt rom on my phone with the original 1.27 radio drivers I think.

I'm new to flashing cell phones but have been reading a lot on here so I am wondering if this is the right way to go about things. Here is my though process...

Take a Sprite backup of my phone and save to storage card.
Install HardSPL so I can actually flash a cooked rom.
Flash the cooked rom
Pretend I don't like 'x' rom and want to go back to how I was
Flash original ATT rom back to phone.
Restore backup.

Is that possible or the right way to go about this? I like the way my phone is now but am looking to get a little more speed/performance out of it while still being able to run all the apps that I use.

I guess I'm just looking to go back to the way it was in the event that I don't like 'x' rom.

[mcmexican]

Yes you can pretty much how you listed it.

[laakness]

Great, thanks. I'll have to try one of the roms in a couple days. There are so many great ones to choose from.

[GTRoberts]

Flash original ATT rom back to phone.

Just make sure you have downloaded the correct ATT rom (and if required radio) for when/if you flash back.