[Capt. Lou]

I never actually had a tog bite thru a leader , generally lip hooked , however that being said lost some larger tog that cut my leader on wreck structure . This generally shows up as a neat slice like with clippers !
Depending on wreck this can happen easily with big fish pressure ,other times rubbing fray can occur so,u need to check,when baiting.
Slider rigs can help as double mono leader to hook .
Often if in big fish territory I install 80# leaders.
Oddly enough every Tog over 15#'s I've taken has been landed on #50 leaders , often overlooked is how to get em' off that wreck fast. Leader strength can be meaningless if he gets back in his lair ur done !
I'm know expert @ toggin so others may have better suggestions .