I have been using 3M for off and on for 15 years. They were always geared towards body guys giving fast cut after wetsanding and glazing to produce a fast shine. They did fill a ton and that's what they were after.... "Production shop work". The compounds were also very hazardous for you health too. The old system was just not cutting it on $100,000 plus cars with all the technical paint that there is. Plus with the new VOC regulations, they had to make a change, and what better time to make it a big change.
Well, the 3M 3000 series has changed all of that. They finally listened to all of their high end shop owners and heard all of thier complaints and perfected a very good system for every paint finish shop. They made a whole new system starting from the Trizact sanding system all the way to the polishing to perfection system.
After working with their new system for the past 8 months, I must have to say that I am quite impressed. I have put Extra Cut and Ultrafina through tough tests and they blew through them with ease. Whether it is hard paint, soft paint, SRC, high solid, low solid, low VOC, etc, etc..... They will work and will get superb results if you are good.
The Swirl Remover Polish in their system is nothing great and does need a bigger improvement. Hopefully they will change it.
Ryan