I throw 8 lb Suffix Tritanium with deep diving cranks all the time. My buddy has nicked named it "kevlar". I drag it over brush and only retie occasionally. Its the toughest stuff I have ever thrown.

I use 10# on my cranking but the deepest I fish with cranks are at 15 feet. I use flou... carb line. If you hook a tree well you need a lure pluger.

I always check the diameter of the line Im using for cranks. Invisx has been the best Ive used so far

You can get away with much heavier line if that's all the depth you need. More confidence and fewer lost baits, too. Try the 15# InvizX or other fluoro.

Back to the OP's question. 8# is not too light for a deep crank if you are fishing clear water with no structure, other than bottom contour. And it's fine too if you want more bites with cover present, though you will lose a bunch of baits and a few of the larger, deep hooked fish because they'll be able to snap it with one or two head shakes.

I believe Jeremy Straks was deep crankin/long lining with 8# InvizX at Douglas Lake when he won a couple months ago. No wood to get hung on in those depths. Try it at Fork and you'll go through your entire selection of DD cranks.

Oh really?? Because spiderwire FluoroBraid was the first braid I ever tried with cranks. And it FLOATED if it did sink it was extremely slow. Maybe I didnt have the drag set right but it still just felt like [censored] to me reeling in cranks on braid.

If you do I would use P-line CXX.

I use 10lbs or 12lbs....but I believe that the reel speed is whats most important! I use a slow 4:1 ratio