FMX,
Its a good thing to have 2 teachers teaching 2 types of techniques .

I had one hell of a teacher , but as I went off into the field and was a helper for several painters for a few years and seen how they did stuff and wanted me to do it , I picked up alot of great things that helped mould me into the painter I am today. I took a few things from every guy that made my job Cleaner , faster, and more effecient. I learned how not to waste any motion.
Not to brag but I make my job look so easy people cant believe I can Prep and paint so fast. But after 30 years I would hope so.
I Have had the pleasure to teach several helpers myself and they are now painting for very good shops and making good money .

One thing is to learn a good paint product and learn it well, I have been a PPG painter all my carrear, I know the ins and outs of DBU/DBC , I only change when a better sealer or a more compliant clear comes out on the market. I have never been a painter that has to try every new thing that comes down the pipe. I think thats why I never have any paint problems, when I do Its usually me pushing it to the limits is when failure comes in .


220 is fine for going to bare metal with a DA, it cuts down on having to load up the primer to fill scratches. The best advice I can give you on using a DA is NEVER run it on edge as it leaves half moon gouges and are hard to get out ( I know it cuts faster but the end results are noit good, run it flat and on a med speed as a higher speed just rips and heats the cutting surface off the sand paper.

Have fun learning FMX , and good luck
Spray