Please note, the white really does pop out to my eyes when I sanded it, so pop out of colour is what you have to look for, and correct terminology, it is clean as white can be, no discolouration, and very shinny at the right angle, sort of a scratchy shinny, please note the yellow is not really a pop out colour , and there is paint over spray on the rubber, so I would say the yellow Mazda is a after market respray, and the colour should be described as a dirty yellow, not really pop out, too dull,
I only lightly rubbed for about 10 seconds, then wiped the surface dry and clean, leaving scratchy nearly shinny surface, using the sun reflection I can lean back and forth and check for deeper scratches, or orange peel, general lumps and bumps in the surface, oxidization, when I see a change in surface shine, I just sand as required, another ten seconds, I bearly reduced the thickness of the paint, only just skimmed the surface,
Also, another way of finding minor imperfections is not to use the sun, just look into and on to the opaque or dull sanded surface, looking for uneven colour, and thinking oxidization discolours the true colour of the paint under the polish, , so the sanded dull colour surface should be unmarked and same shade dull,across the work surface, area, or whole car,
( No deep scratches, deep scratches have a different solution, different approach,
I am expecting a late 2012 Toyota Yaris ??, soon, it has been deep keyed in circles on the bonnet, a nice black colour too, I am expecting to do the key scratch repair, or repair the bonnet cause this guys brother has tried and failed, will show pics when it arrives, a few days I hope, )
I also have a repair on a 2012 Susuki Swift, it is a repair someone elses repair, so my repair will be 6 or maybe 8 times bigger than the original damage, Pearl white too, that will be a learning curve for me,,)
Back to sanding the above, only took a few mins each, and sanding with 2000 is last preparation before buffing with a medium buffing compound , which I think work better with a foam synthetic pad, and do not tear off rear vision mirrors, or badges off, and there is 3 types of spongy pad, soft med and firm , all quick change Velcro, 1 of foam bumper ring around each buffer pad, PICS coming, I really like the sponge backing because it takes the shape, and applies equal pressure over the surface, great for buffing plastic head lights, buffing chrome or plastic grills, and even buffing plastic stick on, stickers from the factory, actually I do not know, but I would guess buffing plastic with a wool buff just would not work as well, I can honestly say I have never tried, and if you buy a special plastic headlight polishing kit, you get a very small sponge buff for a drill, not wool ,
So please guys, go with the sponge foam Velcro buffing pads, variable speed machine, I get really good wear time out of sponge foam, compared to wool tie on with a string pads, I usually rip them pretty quick and throw them away, I cannot remember ever ripping chunks out of sponge foam, they seem to wear down with age, and I have not had a wool buff for a long time,
And I have checked your compounds and with all respect to everyone still have these thoughts,
1, a compound with cutting and polishes must in my mind and experience in microscopic observation leads me to think they grind all the crap off, thougher-ly mix the crap with polish, and wipe off excess, leaving a clear coat polish full of crap, I cannot understand that, light refraction of and in clear coat full of oxidized paint particles, and oxidizing road grime, bird shit, no wonder they only last a few months, and go dull,
2, My conviction is you cannot have both cutting and polishing compounds mixed and expect long term 6+ years shine and brillante reflection under a dirty unwashed layer,
3, indicate to me that they are not quite abrasive enough, but the 2000 paper will lead you to next step,,
3, I am feeling if you have owned the car from new or soon after, and it is a base white original factory, never had polish, or not much polish, I would suggest you are lucky in that no one else has buffed the car before you, and buffed it out,
4, You have plenty of paint, ( smiley face,).
Back asap,