Hey, glad to see you have it working better now.
If it helps at all, I have a set routine that I have used for the last dozen or so prints that seems to work like a charm for consistent adhesion as well as good, easy release using the blue 3M pad. This is using ABS by the way.
Before every print, I take a paper towel and dab some isopropyl rubbing isopropyl alcohol (70% alchohol type) and give the blue pad a nice rub down. If there are any remnants of plastic on the pad I also take a dab of pure acetone on a paper towel and clean it off. Then next I take a new paper towel and give it four or five squirts of “Garnier Fructis” hairspray (“ultra-strong” hold level “4”) and wipe down the pad. Now I do both of these steps when the pad is cold. After that I start the pre-heating sequence. Within a few seconds of the pre-heating, I take the paper towel, give it another four or fives squirts, then dab the area where the print will be going…making sure to leave more hairspray down than soak it up.
After all of that is done and pre-heating is complete, I’ll start the print. I take some tweezers and pluck any remaining plastic from the nozzle just before it gets ready to print just in case. The prints lay down nice and stick right away. Depending on the scale of the print I will sometimes open the front door and add some cooling using a small fan from about two feet away.
Once the print is done, I take a fine edge scrapper and tap firmly at the base of the print while holding it steady with the other hand. After a few taps the prints just pop off the pad…no fuss no muss!
Anyways, I hope this helps you out some. I learned the hard way about the best methods to adhere to the blue mat. Before I figured out this method, I ruined the pad that came when it shipped after 4 or 5 prints because I tried using ABS “juice” to coat the pad. Even with a super thin coating, when I pulled the print up, it took half the blue pad with it…haha!
Good printing!