EI7BA - great website, and your progression with these sort of antennas looks excellent.
I just worked my 100th on 80, so I tried a little experiment. Now that I have 5BDXCC and Challenge worked, I wanted to take down 3 of my 5 antennas. A scary thought, but one my XYL would appreciate.
I removed the coils from my 24' short hatted 30/40M vertical dipole (4' hats - all aluminum - my old HF2V hacked up), and replaced them with a short run of ladder line to a remote SGC Smart Tuner attached to my 6' deer fence.
Voila! My first 80 - 10M multiband, automatically tuned short hatted vertical dipole with a 20 degree take off angle.
It isn't nearly as efficient as the monster SHVD I had on 80M, but from 40 - 10 it is excellent. In fact, on 20 - 10 it has less noise and "hears better" than my beloved Sigma 5. The S/N ratio is better, and the "capture" area is about twice the Sigma 5.
So I did take down 2 antennas, and left the 24' SHVD up and replaced the good old 80M SHVD with a G5RV up at 40' (flat top).
I just didn't have the guts to "only" have one antenna - hi hi.