Rather than reslice with a different first layer height, I’d suggest using a small negative z-offset on the printer itself. If you trammed (leveled) then bed with a feeler made from a piece of paper 0.1 mm thick (.004" a typical piece of paper), and did not compress the bed springs while tramming, then the printer’s “0” position is set that distance above the bed. I generally give the printer a z-offset to compensate.
Secondly, especially with PETG, a slower re-prime, with a bit of extra prime, helps me a lot. With a direct drive extruder, you won’t need to be as extreme as I, but I’ve been using a reprime speed down around 12mm/sec, and extra prime volume that roughly matches the volume extruded for 1mm of line. This lets the nozzle “push off” from the beginning of a line, rather than pulling on it.