Imo long rods equate to longer playing times of all species of fish,if you have a 12ft and a 15ft and fish a venue with similar sized fish its usually pretty obvious,there may be be certain blank/rod variations,but I for one haven't found one as yet...In fact the leverage angle doesn't prove true to me,because as the rod lengthens the rod softens in action,if it was a lump of iron bar it would increase leverage,but not with a flexible rod blank I'm afraid...