I went to 2 lb for a while last year on an extreme light rod and reel , it was just not tough enough for me and also let jigs slip right off the jig eyelet in a few cases .
this 4 is really stout for 4 , its zebco omniflex clear , might keep it on my lightest rod for that there "fine" touch that is sometimes required
beyond that the jury is still out on it , probably won't use it docks much.