I've read a little about that vertical ... 2-40 meters coverage. If possible, see if you can find someone with an antenna analyzer to help tune that puppy. I've read that they're a beast to get tuned for every band.

If you can get the tuning pretty close, even an auto-tuner should do a good job tuning it to resonance at the transmitter. Most automatic tuners give up the ghost when SWR gets higher than 3:1.