I'd leave the 30lb until you lose it - you might be surprised.
I don't think your gear will have the drag to bust it anyway. Use anything up to 6 metres of leader though as others have said.
With the run etc its much easier to hold the bottom with the thinner stuff and 'play' with the bigger reds who like to stuff around a bit before taking off. Reds up to 15 odd kg will be 'handled' by your gear - don't believe the hype - they don't go that hard.