I tryed 60 # tuffline once with a twist type release the twists cut into themselves and broke at the clip luckly the frayed ends tied themselves to the downrigger unlucky the hummpies got to the squid before I could get it to the surface I did manage to get the dogger back but cut my hand all up handlining it back to the boat and that little 4 pound fish broke my 20# leader while I was going for the net. I never have used that rod or reel since.