How much difference is there between a WF and a DT in the same weight? Thought I might try some lines on my South Bend bamboo before I buy one, but all my lines are WF and I was really thinking about a DT on this rod. So if I like the 6WF on the rod will a 6DT be similar? As you can tell I'm not much of a techie when it comes to this stuff. Thanks...