TX valve in VK AC

[85berlina]

Hi guys,

I have had to change the TX valve in my VK a few months ago due to a compressor failure (Everything has been flushed out properly) and it wasn't working very efficiently after. I checked the bulb position and found that the bulb was at the top of the pipe (Don't ask). I moved the bulb down and it works more efficiently.
So, where do you position the bulb around the pipe leaving the evaporator. For example, the four o'clock position.

Thankyou

[85berlina]

helllllllo