When I used to own the MBR844, I never used it for topwater but with its fast taper, and even using FC, I think it would make a great topwater rod for lures like Jackall Pompadour and Pompadour Jr, Deps BuzzJet and BuzzJet Jr, Imakatsu Aventa Crawler GT and RS and any other topwater crawlers, that in my humble opinion, fall into the 3/4oz range. I know that the 844 has a 1 ounce rating but I would really prefer to stay in the 3/4oz range if possible.
I have owned the Loomis PR844C IMX and there's no way that I would have ever considered that noodle of a rod acceptable for topwater unless I was using it for Megabass Sigletts.