[Elecraft] FILTER selection.

[Ruben Navarro Huedo]

Hello friends:
I know that this question has been done, but i have to ask to be sure of 
to buy the correct.
I own a k3/100 with ATU and Receiver antenna input.
It has original 2700 - 5 pole filter.
I use my k3 for ssb and rtty contest and some dx in the same modes.
Some questions:
If i buy 2800 - 8 pole filter. Do i have to extract the 2700 filter?
If i have the 2 filters (2700 and 2800) in the radio and i have the 
bandwidth at 2400 hz. What filter is used?
Normally i like use 2200 and 2000 in my Icom for SSB and 400 for RTTY.
What is your advice for filters?

TNX a lot for your help.

-- 
Rubén Navarro Huedo - EA5BZ
http://www.palotes.com