Snappin Off Cranks While Casting???

[Grizzn N Bassin]

x40 on what these guys said

[einscodek]

That's a 1 ounce lure your tossing around with 12# fluoro.. I'd bet its a shock related breakage esp if you have a snappy cast to try to get that lure out there for a longer cast.

Else like others said, check all the guides. 

If you like Fluoro I'd go with Seaguar Tatsu .. its been very durable for me..

[CrossK]

Check the guides as others have said and don forget the line guide on your reel too! That's where mine was and I couldn't figure it out why it was fraying my line for the life of me haha. Also try changing your knot, that may be the problem also.