[Lowfer] Balun help

[Jordan]

Happy New Year all...

I'm building a 9:1 un-un , and would like general coverage operation from 
~50Khz to into the HF region perhaps 20Mhz or even 30Mhz if possible.

I have some T-200 Red, 2-30Mhz cores, and also some 200 Grey, 50Khz to 
500Khz cores....The OCF wire is ~ 90feet long with a 30ft drop wire to the 
feedpoint...

Which would be the better choice....?


73...Jordan VE6ZT