In the store looking at the new brand of Seagaur lines and noticed the 6lb test is the same price as 16lb test.   Is there a time when 6lb is better than 16lb?  If they are the same price, wouldn't you want the strongest line?  Guess it depends on the setup and style your using, but I would buy the strongest possible if it does not make a difference

Smaller finesse baits require lighter line to have the best action.  I also believe lighter line move less water and is less obtrusive to negative fish. IMO this is more of a factor than visibility when talking about "line shy" bass.

Spinning tackle #6

 

Baitcasting #12 Yo-Zuri Hybrid, #20 Tatsu

I dont get ll tied up in the line débâcle i use zebco omni flex mono exclusively. Its every bit as good as the big names

A big bunch of baits have a much better action when not tied with rope.

My spinning combo usually has 6 or 8 lb mono or 20 lb braid with 6 lb mono or fluoro leader.

My bait casting combos usually are spoiled with about 15 lb mono, 50 lb braid, or 50 lb braid with a 12 lb fluoro leader.

It isn't about getting the strongest line for your money, it's about getting the right diameter line for the style fishing that you will be doing.

Lighter line/smaller diameter lines may cast lighter weights better as well, given everything is appropriate.