Casting distance comes from the rod properly loading up the bait. If the bait is to light the rod will not load up or if the bait is to heavy the rod will over load and whip around on the forward cast, both will cause a decrease in casting distance. The number of guides really doesn't have anything to do with it, the more guides just mean more points of contact on the blank for sensitivity. I use 9 or 10 plus a tip on rods 6 to 7 foot but the style of guides can make a huge difference. That is my best guess If the reel line and jig are the same.