Great info :-)

These are the spacers? https://www.amazon.com/FYSETC-Printer-Heat-Resistant-Silicone-Creality/dp/B07MH4JQB8/ref=mp_s_a_1_5?dchild=1&keywords=ender+6+silicone+bed+springs&qid=1616252215&sprefix=ender+6+sili&sr=8-5

What washers should I look for in size?

So after trying with stock unit, do these?

1. Silicon Spacer with Metal Washer
2. BL Touch
3. Micro Swiss Extruded

Do you if there are any links to install the micro swiss? Is it simple swap or requires more parts and complicated? Any settings adjustments afterward?

So the main issue is the stock bed, PETG will not adhere or also PLA?

I’m going eventually use only PETG.

Here are the ones I got; the biggest benefit is that they literally NEVER move. They stay solid for so long—I've had mine for like 2 months and haven't needed to relevel :)

Yeah, fysetc silicone spacers off Amazon.

FYSETC 3D Printer Heatbed Parts, Solid Bed Mounts, OD 0.63 in ID 0.16 in Stable Hotbed Tool Heat-Resistant Silicone Buffer for CR-10 Ender 3 Bottom Connect, 4 Pcs https://www.amazon.com/dp/B07MH4JQB8/ref=cm_sw_r_cp_api_i_RSJYA61VMDP3YHB96QD9

I also purchased a random blue set for another printer that are working great. Make sure to compress these a good amount so they bow outwards like a squished marshmallow.