Using CLR on surface rust. How am I doing?

[endlessearth]

After seeing a really nice patina'd truck this weekend that had been waxed, I decided to try CLR on a couple areas of my truck to see how it would work. Here is what I did:
1. Clean area with cloth and dry thoroughly.
2. Apply CLR with a common household dish washing sponge (has a bit of plastic mesh on one side but is far from being a scouring pad.) Use moderate elbow grease.
3. Wash with clear water and dry.
4. Re-wash with water mixed with baking powder to neutralize any residual CLR.

Here are the pics:
Rear of passenger bed side. This is what it looks like pre-CLR.


Rear side of driver's side bed side. This is after CLR. It looked like the pic above beforehand.


In this pic, I used CLR on the lower left of the tailgate where it meet's the driver's side bed side . It was previously orange with rust all the way to the bottom. Should I continue? There isn't much paint left and a lot of the undercoating is going to show when I am done.


This is a before pic of the back half of the passenger side bed.


This is an after pic. I only focused on a few of the rust spots. You can see again that light rubbing with the sponge is exposing more of the primer. The paint on this truck is pretty shot.


Here is one last shot. You can see the area above that I worked on and how the rest of the panel looks.


So, here are my questions:
Do you recommend that I continue?
Should I retain same technique and tools or alter it?

I think the truck will look good with the rust removed and a nice coat of wax to protect it but I don't think that there is going to be a lot of tan paint left on it when all is said and done.

Thanks in advance,

Grant