This looks interesting, as read from Martin's site, all of the following wire sizes should present a manageable load to an Autotuner (such as a SGC or a CG3000). As I want to have a go with a rotatable dipole once the weather improves enough to go outside, I was interested to read Martins thoughts on Non Resonant Antenna Lengths
For example, good lengths of wire to use for vertical antennas, permitting operation from 80m to 6m are around:
7.2m (tune for resonance on 10.4MHz)
9.2m (tune for resonance on 8.2MHz).
I suspect i'll end up modeling the above lengths in EZNEC later this evening to try and understand what the likely performance will be.