Some reels are just harder to control and maybe you got one. Maybe it's why Dad gave it to you? : Another reason for the difference is a wide reel has more spool mass and more line mass, so it's takes more force to get the spool spun up when casting, and it takes more breaking to slow the spool down at the end of the cast. If you are throwing a heavy lure, like a 3/4oz carolina rig, that can be a good thing. The spool can spin up and diesel along, giving you a very long cast. But if you're throwing a worm on a 3/16th oz T-rig, it will take a very educated thumb to get that done without disaster. The fluoro is also heavier than braid or regular co-polymer line, which is another minor factor that magnifies the spool mass. If you're new to baitcasters, it makes sense to spool up with some less expensive line (yeah, Big Game is great for this). Btw, when you cut line off your spool as you get backlashes, you are decreasing the diameter of the spool and that is the same as applying more cast control. It will give you shorter distance on your cast. That may not be bad for practicing in the back yard, but after you get things 'dialed in', you'll be more consistent if you keep the spool filled to the same full level.