After playing with it a bit more I have more findings. There is Geyser/bedrock support BUT the blocks ALWAYS show half a block downwards. This leaves gaping holes and eyesores around but it works relatively flawlessly. I was placing the original REAL block inside of the fake block with very precise placement and that was the only way I could remove them. In fact, if that was implemented into a feature allowing real blocks under the fake ones that can be broken to create an escape without evidence it would be pretty game changing. Currently I am not using the datapack as the geyser issue is pretty glaring since I troubleshoot most stuff using my phone. Pistons would not and will not break them for me still though (waited up to 5 minutes). The lag from them is NOT as bad as I originally thought, like you said the first block is the biggest perf impact but it does add up. Having 100-200 of them causes a big impact, close to 10-20mspt so HUGE traps are not viable. If there was a way to implement GeyserMC support I would 100% be using this every day.