I'd recommend a leader personally.
If you have one at, say 60lb, then your snoods at 50lb with a 50lb rotten bottom as well you'll find that you lose little end tackle.
I use this sort of set-up myself and I find I manage to straighten a few hooks rather than lose them. If you do get stuck with a lead it'll have more chance of being rescued with a 50lb rotten bottom. If you went straight-through with 70lb all the way and got stuck fast you could lose a lot of line.