Just something I found interesting on my last few trips.
Fishing mainly for galjoen, I got stuck a lot. Was using 0.4 main to 0.7/0.75 leader.
When I made a spider hitch to fig.8, it mainly snapped just above spider hitch. Took a little bit of extra time and made a bimini. This resulted that the most common break-off was on the double lines just above the fig.8. In other words, the same bimini was used on at least 3 or 4 fig.8 knots with the legs getting shorter and shorter.
My last try was to plait the lines as said above and then the break was just below the fig.8 on the leader. Took some extra time which is not ideal under these conditions, but factoring in the fact that I only tied the fig.8 after that, I think it was well worth it.