I think they saw this yet.
-COAT is basically INSL and TTAN, but it's not a bad idea
-DECR is very similar to black colour decoration
-PDET seems a very useful and good idea
A single pixel of TTAN can stop pressure flowing any further, but the pressure blocking acts on a 4x4 pixel area. Pressure will not flow beyond this 4x4 pixel area, but may flow into this area. Watch this save in pressure view - the WIFI breaks before entering the sealed box of high pressure, since some high pressure is present all around the TTAN (sorry, forgot to use the stable version to make the save, you'll probably need to use the beta).
Property to make detectors detect less than instead of greater than - that might make it easier, but you can just use a not gate.