aclass

No, you do not need to discard them, just don't use them on the body of a vehicle.  Use them for engine bay cleaning, the insides of wheels, exhaust pipes or anyplace that is not polished like the body is.

To mark mine for non-body usage, I cut the corners off the towels along with storing them separately to ensure no cross contamination.  Furthermore, since they are non-body towels, I hand wash them since they can get nasty with the areas I use them on.

I know it wasn't on your list, but if you have H20 Guard and Gloss, I would use that.  In my opinion, nothing looks better on White and it does last a long time.

From your four choices I would use CSC hands down.
https://adamspolishes.com/collections/adam-pitales-personal-favorite-products/products/ceramic-spray-coating

Adams metal polish topped off with a coat of CSC. Chrome will definitely get you home 👍

I have them both and can't say anything bad about either one, what I do like with our Air Cannon is the self expanding & retracting 30 foot premium hose.
It's a very nice dryer & a great price.
https://adamspolishes.com/collections/car-drying/products/adam-s-air-cannon-dryer

Can't speak to the air cannon, but I do have the Master Blaster and can't say enough good about it. It's mounted on my garage wall, and I have plenty of hose to go all the way around my Equinox either direction. Plenty of air, two speeds, it will blow water out of a pool!   Doesn't take up much room on the wall either, and comes with a bracket to hold the hose.  This is the best pic I have of it on the wall. It's the black thing under the blue sign.
 
 

Don't overlook what you can accomplish with Metal Polish #1 followed up with Metal Polish #2 then simply topped with just Brilliant Glaze!
51 year old bumpers on this 76,000 mile 1969 Z/28

 

The Metal Polishes were worked with blue foam pads using the SK Mini
Before and after on the wheels, same process as above:

 

That looks great Jeff!! 

Adams metal polish topped off with a coat of CSC. Chrome will definitely get you home 👍

Adams metal polish topped off with a coat of CSC. Chrome will definitely get you home 👍

Thanks very much gentlemen

Yup... just finished. It's beautiful. Made the black nice and deep. This is after polish before coating. 

Well hopefully you don't go through car washes as many times as he did but I have to say he wont be doing that again !! Here are some before and after pics of the truck that was paint corrected. Flex 3401, Adams 2 step paint correcting polish, Adams Liquid Paint Sealant and a coat of Americana. Sealant also applied on wheels, VRT "milk" on tires. 

How much soap are you guys putting in the container? are you doing a lot or a little? recommended is 3-4 ounces which is about 3-4 big squirts. do you shake the bottle a little and mix the water and soap too? I do know that a higher GPM will give you better foam as well.

Thanks again for the helpful replies. The vehicle is White so my major problem was too much product and not working it in enough. By the time i was finished with this beast I had finally caught the hang of it.