[TowerTalk] 40m rotatable dipole

[kb2m]

 I'm going to drop my tower this coming weekend. One of the things I plan on 
doing is replacing my 44' rotatable dipole with a 66' one. I looking for 
suggestions on what feedline to use. I'm now using 450 ohm ladder line into 
a 4-1 balun, then a short run of coax into the shack. I've had some rf 
problems with the 44 footer,  that I think might be solved by the better 
match of the 66 footer? Should I consider different feed line? I have a coax 
run already in place that is not being used, so it would be easy to switch 
over. also mounted on the tower  is a Steppir 4L at 64 feet, and 
2M,1.25M,70CM, beams starting at 78'. Where would you position the 40M 
dipole in the 14' space between the 4L and the 2M beam? I didn't notice any 
interaction between the 4L and the 44 footer. Thanks in advance for any 
useful suggestions....

73 Jeff kb2m