Another factor that must be considered regarding the performance of line is spool design. I'm sure it matters on a spinning reel, but I know it makes a difference on a baitcaster. For example, I notice a huge difference between both of my reels. My Calcutta 150 has a standard design Shimano spool, which is narrow, small in diameter and deep (small shaft). I've noticed that this spool design seems to give more memory when using certain types of line. My TD-X has the infamous long cast type spool, which is large in diameter, but has a V shape to it. Even though it doesn't hold alot of line the design does help with casting performance. If I try to use a really strong line such as P-Line's XXtra Strong I have a hard time using it with the Calcutta because of line memory, lots and lots of coiling. On the other hand, I can use it with the TD-X with no problems at all. This holds true for every line that I've tried on both reels. Later!