A bit off topic but I used and bought from aliexpress:
I bought the GD900 paste for a much lower prices than currently is available ($5 now $1.70 when I bought). The paste is really good. For 5 dollars you get a lot and you probably never going to use most of those syringes.
The improvements are really worth it. The tablet was overheating without mod and after mod around 60 Celcius.
There was only one problem, a sensor on the motherboard got hotter and the tablet was thermal throttling anyway.
I’m working on a guide to disable the sensor.