I noticed last fall that Berkley was going to stop producing Whiplash line in 50# test and less. You can get 300 yards of the 30#/6 and the 20#/4 for about $15.00. I used it last fall and this spring and summer for trolling and it seems to work very well. It may not be as abrasion resistant as Powerpro or Spiderwire (just what I have heard, I have not used them before) but the price is right for a casual angler who wants to emulate the trolling performance of the more expensive superlines. It would be interesting to put Whiplash and Spiderline in a blind, side by side comparison in someone’s boat to see if, at the end of the day, you could tell which was which. I believe that Whiplash is made from Dyneema and Spiderwire is made from Spectra (I’m not absolutly sure of this).