PEI Build Surface and Other Thoughts

I've ordered a PEI sheet from TH3D along with a couple of spare wheels. Everything I read about PEI is something like "EVERYONE SHOULD USE PEI" (yes they are shouting). I'm going to give it a try. I think I'm going to stick it to the back side of the stock Ender 3 build surface.

Update 2019-Oct-01: I've discovered that my bed is 'wobbly'. I'm sure this could be the source of much frustration. I've readjusted the rollers and all seems to be working properly. Haven't tried anything yet. A task for tomorrow.

I plan on doing an extensive surface leveling - that's adding shims under the middle part of the build surface to kind of even things out.

Update 2019-Oct-14: I'm going to just do a single shim in the middle to get things close and then do manual mesh leveling with the new firmware. My first print after the new firmware (still old style leveling) seems to have resolved some of the problems.

I'm going to soon try out the PEI surface. I'm planning on sticking it to the back of the stock build sheet so I can just flip it over and use the original surface (for PETG) without the need to do any re-leveling.

Update 2019-Dec-24: I FINALLY got around to trying the PEI surface. It seems to work quite well. I just flipped over the bed surface and did no re-leveling. It's just a small model I'm testing but it all looks good. I'll be testing this over the next few days and expect good things out of it.

One more update after some more testing.