right just done what mark suggested and now i'm even more worried

Measured in BAR

1 = 7.8
2 = 6.5
3 = 4.0
4 = 3.0

here's the weird thing, No 3 is very low and when i did the comp test normally, No 3 was the highest reading

Here are the normal comp test readings:

1 = 12.0
2 = 11.5
3 = 12.5
4 = 7.5