I replaced my tubular shocks with Stipe shocks. Yes, there is a noticeable difference. The Stipes are not so stiff. I can't really say I like the ride of one better than the other--they are just different. I was used to a very stiff ride for many years, so the softer ride seems a little odd to me.
However, I could not stand the appearance of those ugly tube shocks on my Model A! Therefore, I had two reasons to change: the different ride quality and the appearance. I am getting used to the softer ride, and the new shocks look like they are supposed to look. I am very happy with my decision.
And it's more than a grand, unless you have parts on hand. Shocks, mounting bolts, tube-type links, rubber grease seals, metal caps for the grease seals, arms, bolts for the arms. I'm not putting the prices on these things, because I don't really want to know the total. If you have time to look, good originals may be cheaper than reproduction parts.
I would do it again.
W. Michael