[Elecraft] Multiband end-fed dipole with KX1

[PGSchreier]

Hi gang,

I would like to find a 40/30/20 meter end-fed dipole I can run with my 
KX1 and its tuner. (I'm not crazy about linked dipoles for a number of 
reasons.)

Are you familiar with any end-fed design that will handle all three 
bands well?

For instance, does anyone have any experience with the EndFed 40-6m 
Antenna from W1SFR?
http://kx3helper.com/endfed-40-6m-antenna/

Thanks for any tips!
Paul  AA1MI / HB9DST