I have had pretty good luck with my 40/20M fan inverted vee antenna. I am replacing it before Winter strikes. I took down the old mast/antenna and found it surprisingly in good shape.
The new antenna is going to include a 17M addition. This one will be in a spoke configuration instead of one leg on top of the other. This should help simplify pruning of the antenna.
I was going to replace the 5/8 wave, 440 Mhz antenna on top of the mast, but it was in very good shape. I tried a quick test with a 440 Moxom antenna, but found that the 5/8 still worked better even with the Moxom directivity.
I completed the installation and was pleasantly surprised to see how low the SWR was for each band. Tuning was only needed for 20M. With Tuning completed, SWR is 1.5:1 or less for each band.