Sorry I missed this thread. I just went through the exact same thing at almost the exact same time and talked about it in my thread "New M430i Help Me Decide What to Use".
First time using CQUK 3.0. I thought my MF towels were nice and clean. I was using Cobra Gunmetal Elite 360gsm (short pile side) and a Supreme 530 600gsm as my secondary towel. About a third of the way into the car I noticed when shining my utility light on a hard oblique angle I could see a whole bunch of fibers deposited on the finish (head-on it looked perfect). Panic set in because I thought they'd cure onto the finish. After noticing the problem I switched to A Woobie Towel 350gsm and a Miracle Towel 600gsm. Same thing. At this point the car was 2/3 of the way done so I finished it. I then found that the fibers could be moved around but not lifted from the finish. My plan was to apply Gliss 36h after but I still wasn't sure if the fibers would cure onto the paint. I went to Costco and got a bag of their MF towels because since they were virgin and they could be gotten quickly. Thanks to encouragement from member 'The Guz' I decided to go forward with Gliss and I'm glad I did. As I was applying Gliss, the block with the micro suede applicator was collecting the fibers and depositing them at the end of each stroke. Then using the new Costco microfibers I was able to get a 95% clean wipe. I was very relieved for a couple of reasons, first because I didn't [temporarily] ruin the finish of my car and secondly I was able to carry out the whole process as intended because it's not straightforward for me to free up the garage for this car to be in it. I ended up with a couple high spots and thy were rock hard so I can't believe the fibers didn't cure onto the finish (whatever the reason I'm glad they didn't). To be fair, the car still hasn't been in daylight yet so we'll see how it looks in real life tomorrow.
