On the 555 dyna-tip line: It is different from the rest of the 555 series in that it does not have that extruded hollow core construction that tends to have high memory. It is built on a braided core like the more typical lines on the market. Here is a review of the line: [url=http://www.theflyfishingforum.com/forums/showthread.php?t=250&highlight=dyna-tip:ca724]http://www.theflyfishingforum.com/forums/showthread.php?t=250&highlight=dyna-tip[/url:ca724]

On the XPS line, I do have the WF3F and like it very well. I think it is one of the more delicate-presenting lines out there. The line will feel light in comparison to an XPS. The long front taper helps present flies softly onto the water, but will not give a lot of force. If you want the line for delicate presentations with small/light flies, its outstanding. If you want it to kick over hoppers, nymphs with shot, and poppers, you'll likely be frustrated with it. I like it as a specialized tool on my 3wt, but I will stick with something a little more powerful on my 4wt, which I force to be more of a "utility player".

Oh yeah, distance casting really isn't a problem with the XPS. I can throw 70' with my 7' 3wt just fine with it. You'll find that the short belly on the line helps it shoot fairly well.