[Amps] Tank Circuit Help

[ni4l@charter.net (NI4L)]

Hello All
I have a question that maybe someone can help me out with.
I am in the process of  building a GU84B amp.
I have a 2 vac var caps and a roller inductor, I have a bandswitch also 
but is there really a need to use the bandswitch  when you use vac caps 
and a roller inductor. Pro/Cons?
I am still a babe in the woods on this so any help would be greatly 
appreciated.
Chris