David - The L4 comes with a .075 and a thinner tbar, use the .075..

I use the JR 3550 servo, which is a mini servo but it will work with the L4 without modification.

If you are going to run this @ Mikes at all, use grey rear and purple front or pink rears. I like pinks myself.

Other than that, the L4 is ready to go.