I had two of fiber blend rods way back when, a crank bait and a spinnerbait. They were some of the first Loomis I bought but once I bought my first GLX rod, I sold them. I never really cared for them but also at that time, I really didn't know any different. I can't think of any rods that are as soft and spongy as these rods were.
Oddly I thought the new IMX Pro topwater rods were pretty soft at the tip but that was just holding the rods in store. They seemed similar to the IMX Pro MBR series with the exception of the frog rods. They were pretty stiff.
The Valkyrie rods from Megabass come to mind. I have the 7'1'' H that I use for frogs, Magdrafts and topwater walking baits and the 7'4'' H+ for swimbaits and A-rigs. These rods have a softer feel over all but are pretty heavy by today's standards. They are a carbon fiber/glass blend as well and they have adjustable butt handles, which is great on a kayak. They too, I think, have been discontinued.