Doepfer

I am looking to buy a joystick from doepfer..
I see people want to remove the spring. I assume this is to make it more 
like the EMS Synthi style i.i so it wont spring back to the middle 
position, so how does it work if you remove the spring on a modular 
system mounted in the vertical position, wont the joystick just always 
droop to the lower position...???