When would you use copolymer over fluoro?

Yellow magic and my shallow cranks 12-15lb

When you don't want to spend a ton of cash money.

With that said, I use it all the time.

Pline original PF is just awesome for everything 15lb test I have never broke off even in the most narly timber and it is not expensive
http://www.tacklewarehouse.com/P-Line_Original_Line/descpage-PLFO.html
The only exception for me is the sunline FC reaction for senkos 14lb test.

I gave flouro one more year than i said but now its back to silver thread excalibur for.everything....

I use P-line Flouroclear on everything except heavy mono for a few applications. Very strong and low memory.

Siver thread is best ive found by far and can be bought in spools of 3000 yards for $30.00. Imo

Mcoys for copo

McCoys X Clear copolymer is all I use now!

Topwaters and maybe Lipless Crankbaits is about all I use copolymer and/or mono. All other applications are Fluorocarbon, except for a few applications of Braid.

I use pline and izorline on everything except Carolina rig which I went back to red label for because of the low stretch and having alot of line out. Other than that I went back to copoly and happy I did.

Suffix Superior is the best copoly I've run across, been using it for 10 years.

I feel like I get more sensitivity from Flouro but Pline copoly is definitely the most abrasion resistant line I have found.

I use Seagaur Flouro and Berkley Big Game for mono. Suffix 832 for braid and Ive always wondered about Copolymere, just never used it much. PLine is a good brand, so when I decide to get more experiece with copoly, I'll go with it.