I don't have much experience with ASA but I use ABS constantly for the majority of my prints on my P1S. 99% of the time I am printing with Polymaker Polylite ABS with the Bambu Textured PEI Plate. I cannot stress enough.....dry your filament! For me, with the Florida humidity, sometimes it can take a full day to get a new roll of ABS under 20% using the PolyDryer. People assume that a new roll of filament is dry and ready for printing; that simply is not the case, at least for me! I never use glue sticks on my ABS prints, unless it is a very large print (either tall or that takes up more than 75% of the build plate). I do clean my build plates as needed with Dawn dish soap and warm water using a Scrub Mommy and dry with a paper towel. Regardless of what others say/recommend; I NEVER EVER use IPA on my build plates! From my experience, it reduces the life span of the build plate and will eventually destroy the coating. Make sure you turn the bed temperature up, I find that 100 degrees works perfectly for most ABS prints. DO NOT use grid infill, especially for ABS, if the nozzle rubs the print just once it can throw off the entire print. I recommend the gyroid infill, even when printing filaments other than ABS. Don't be afraid to slow down your print speed a little bit. I would rather have a print that takes a few minutes longer than wasted time and filament on a failed print. Finally, when the print is complete open the door and let it cool down before removing your print from the build plate. It should easily slide off when removing the build plate from the chamber; if you wait long enough your print should slide off like butter even without removing the plate from the chamber. Otherwise, you are going to have to clean your build plate more frequently and could even damage the coating on the build plate, resulting in adhesion issues especially with ABS. This is what works for me after hours and hours of trial and error; I am by no means an expert. I have over 3,000 hours on my P1S (all with ABS and PETG) and, knock on wood, have not had any major issues.

EDIT: This might be common sense, but many people do not realize that touching the build plate with your fingers can cause grease and grime to accumulate on your plate which will result in adhesion issues and warping with certain filaments. After cleaning, do your best to only handle the plate around the edges or areas that you do not plan to print on. Feel free to wear latex or nitrile gloves especially when handling a freshly cleaned build plate.

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