mikebai1990 said:
Reviving this thread... I just got a new PC, so I might be able to put Megs #9 to use!! How would #9 compare to 80 and 83 in terms of cut? I think that 9 would be pretty good for use after the 83->80. What do you guys think?
M09 is much milder than M80. A great number of people using the PC finish with M80 Speed Glaze. Once it is completely broken down from removing minor defects, it leaves a rich layer to wax or seal over. Following with M09 might not show any better results than M80 left, especially on a base-clear finish. As TH0001 said, M09 was developed a long while ago and seems to work better for single stage. If I use a Meguiar's polish product after M80, it's M82 (Swirl Free Polish).
People argue about the filling aspect of M80, but I've never used it for such results. If you do correction before M80, then use it to refine that correction, I think you will see a nice finish. It does leave a bit of an oily look, but that is not the same as filling.
When M80 first came to market in 1995-ish, I tried to use it as a "filler" product without success. It's not a glaze in the sense that most of us think. Personally, I say the name was a poor choice for the product. I prefer to use it by DA/PC rather than by rotary since it is fairly mild.
M09 is one that some use if the paint is in very nice condition and has only minor-MINOR swirls to remove. It does very little by DA/PC since it is so mild. Again, I prefer M82 in this case, but it's really not any stronger in terms of correction, just in how it works.
I would try M80 as a finishing product to see if you like the look.