#1
I'm not new at guitar playing at all but I'm new at changing things on the guitar etc. etc.
So I'm doing my intonation and action and I can't lower it any further for my low E string but I think I can get it if I take off this stupid spring.
How important are those springs that come with the saddles? What is their purpose?
#2
The springs help keep the saddle in position, it'll move around a lot if you take it out (so your intonation will go all over the place).

I had this problem with my guitar, I just experimented with lighter string guages and eventually I managed to fix the intonation.

So yeah, try lighter string guages.
#3
if its a gibson bridge, you can flip the saddle piece around. my guitar tech told me that
this is a post. there are many like it but this one is mine

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