Does anyone notice a longer casting distance with slightly thinner line?

I am talking about going from #15 to #12.  Copoly or fc or mono. It seems like a small dia change, does it really help in distance or do you need to drop from say #17 to #10 to see any noticeable distance?

I can see differences between 12# and 14#. Seems the bigger the jump, the bigger the difference.

I dropped from 14 lb mono to 10 lb mono and its casts a lot farther and just seems to flow off the reel so much smoother. And it has a lot less memory in my opinion. Lighter line is just more comfortable to fish with for me.

I dropped from 14 lb mono to 10 lb mono and its casts a lot farther and just seems to flow off the reel so much smoother. And it has a lot less memory in my opinion. Lighter line is just more comfortable to fish with for me.

I agree. I just wasn't sure how much distance I would gain going from #15 to #12.

I agree. I just wasn't sure how much distance I would gain going from #15 to #12.

 

 

I think that would gain you a considerable amount of casting distance. Last year on one of my spinning setups i switched from 6 lb mono to 8lb mono and i noticed immediately that i didn't have the distance i had with the 6 lb line, and that's only 1 diameter size difference. 12 lb line will still hold up in most situations, so for me i would definitely downsize to 12lb.