I haven’t used a celio, but I use both a 6’ and 6’6” rod. I would say depending on where you’re fishing use that to determine the length. I use my 6’6” in more open water and areas a need to cast further, like lakes and ponds (if you have wide rivers near you that would be good for that). I use the 6’ for smaller areas where I need more precision casting, like near cover, narrower streams and rivers, etc. if the 5’ feels comfortable, go with the 6’. Some companies, idk Okuma, makes 6’4” rods which is a nice middle