For the better part of my life I 've fished cranks with a Med Fast graphite rod, then last year I purchased my very first bait specific rod, a Kistler Mag TS crankbait series ( glass/graphite composite ), the difference in casting and behavior of the blank during the fight is completely different than that of the rods I normally use for crankbaiting RW.
You know that I 'm not fond to trying other brands, yes the rod had ergonomical issues ( I HATE humpgrips ! ) plus the reel seat issues ( which are now corrected in the newer models ), however I have to say that I really liked how the blank behaved in that rod, another world RW, when you cast with the crankbait rod the blank feels as a spring as it releases the load begining at the mid section and ending up at the tip pretty much like a whip, the crank goes flying into the air like a bat out of hell, I felt a more lively action from the bait as I retrieved and worked it and when a fish gets the bait and begins the fight the rod responds like a shock absorber bending all the way down to the middle section.
Well, I ain 't gonna purchase another Kistler after selling that one, but there are other brands which are more ergonomically fit for me ( with straight handles ), after trying that one now I know why crankbait rods are for crankbaits, gotta get me at least one.