Thanks for the complement.
You'd be surprised how much better yours will look once it's had a thorough decontamination and even a single stage buff.
First things first though, it REALLY needs that decon wash. IRON-X would make a huge difference.
Some IRON-X then clay, others clay then IRON-X. I tend to do it first, the wash and rinse. Then hit it with Nanoskin on the GG6 (plus hand held Nanoskin pads). Then go back with a IRON-X snow foam for a second wash and rinse.
I've had the opportunity to attack Type 2 water spots like yours quite a bit. They're not completely un-fixable, although it takes a bit of looking to determine if they've etched/discolored the base coat or not. If it's just the clear, it should be easy enough to get 80%~90% of them out first trip around.:xyxthumbs:
Working with the DAT compounds gives you extended working times over SMAT products, just that they cut less with each pass. For that matter... you MUST work them longer or you don't really get the benefit of the product (as it's designed). Although on that first pass, these products may indeed cut a bit *more* than the equivalent SMAT product would...
then quickly diminish the longer you work them.
Whereas working with a SMAT based product you'll do 3, 4, 5 passes (max) and STOP. (
For most of them.) Actually... if it's something like M105 you might not be able to work more than 2 passes depending on the ambient temps before it gets too hard to work and dries out. It can of course be worked longer at times, but be careful that should you *try* to work it like say Ultimate Compound you'll end up with it drying out and literally turning to cement on the surface.

At ALL COSTS you really,
REALLY don't want to go down that road!
Not of course that all SMAT products behave like 105, because they don't. Take D300 for instance... it is an AWESOME compound (my most used the last few years). Just remember they ALL cut hard during those first 2, 3, 4, maybe even 5 passes. Much harder than DAT compounds. Which of course can lead to micromarring/DA haze when trying to work SMAT products too long. The micro particles can actually start to cut differently than they were designed to, with built up abraded paint, spent product, dirt, pad residue, et al working upon the surface (
as well as within the pad). It's just easy enough to work the product "clean" by doing a few passes, exercising care to leave a "wet trail", wipe it clean afterwards, then if you need more cut... reapply and do it again.
This is why we'll often do the first correction step with a SMAT compound, then top it with a DAT product that generally finish easier. FWIW, that C7 was done with D300, FG400, and SF4000.
There is a way to use FG400 as a 1.5 step process that can streamline the process a bit over a 'true' 2 step process. Basically you start with a cutting pad, as well as a finishing pad, both primed and cleaned, and both using FG400. It is amazing how well it'll finish down, especially when you consider it's really a heavy cut compound. It's THAT good!

rops:
The two big differences between the machines are:
GG6 Considerably more power
GG6 Lifetime warranty!
FWIW, I have a GG6 here, as well as a Rupes and a Flex.
Drop me an e-mail and I'll give you my cell# and we can talk.
RE your schedule... I can usually work out any day (or two) given a few days notice.
On the training thing, I do some of the work, then just let the client go to work. Everything from starting the wash with all the brushes, decon, taping up, compounding, polishing, all the way to sealing. Depends on what all they want as to how much time it takes.
One guy was here NINETEEN HOURS and wanted his whole car wet sanded! He showed up about 10:00 am and didn't leave till after 5:00 am the next morning! He sorta' wore out his welcome.

I was LITERALLY DYING!
(
I have a REALLY bad back and he just wasn't paying attention to my efforts to get him to leave.) Won't let that happen again.

Actually I was fine at the 12, even the 14 hour mark, which was midnight. But that's time to get outta' here if ya' know what I mean.