Painted Tumblers - settings or larger laser? - Tips and Tricks

I have an XTool D1, 10 watt, with the rotary. I tried a few tests with a Yeti or RTIC tumbler on the recommended Laserbox settings. 100% power, 70 mm/s. The results are inconsistent at best. I am never able to clean the engraving fill to where it doesn’t look like the paint was basically burned onto the stainless. Some decent, but some just plain black/burned paint. Will this unit do coated Yetis or RTICs? If so, is there a better setting/speed? Thanks!

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