If you are looking for "true" 4# test I suggest the Varivas Twitch Master VLS line. I used SOS line for years...it's good line but as with the overwhelming majority of US market lines it breaks way above its rating. The 4# SOS will break right at the 6.5 pound mark...it has a diameter of .200mm. The 4# test Twitch Master has a diameter of .148mm. You will get much better casting distance with the Twitch Master. And if you step up to the 6# test Twitch Master the diameter is .185mm.....still smaller than SOS 4# test line and will cast further.


Regards