I have the Hagons, my only complaint is riding solo they are pretty firm, at lowest preload. But two up the ride is nice. I have the Landsdowne front end treatment with home made teflon bushes, the front end is luxurious. Funny I never noticed the rear being harsh until I got the front sorted? Your bike is spotless Maylar, I hope you don't trailer it around. Sorry mate, please don't take offence! But are your progressive comfortable, I have them on my Shovelhead and they really transformed the old truck, now I can ride all day on the Shove and still walk afterward.
Cheers Richard