Sorry I was a bit sharp, I have a tendency to say/post exactly as I think it.
I agree with braid looping up, although I did find once it was wet I could rub mud or putty over it, the whole length, and it would sink.
Short braid hooklinks loop up more than longer ones I think, but I tend to use braid in short lengths, normally a maximum 9inches anyway, mostly in PVA bags where I want the rig to be coiled, definitely not straight.
I'm not sure about always fishing stiffer material on a helicopter lead set-up, this is where we have differing opinions, but it may be, because I prefer combi-rigs with a mono or fluoro stiff section on gravel, sand or clay, not silt, and always make them with a loop at the end, or use a ring swivel.
If I can I prefer running leads with a slack line, however undertow can ruin that idea, so on the big fish water I end up fishing the tight line.
This is where our opinions split apart again, as my big fish water has so many different features, from massive gravel bars, to weedbeds and silt patches, and I want the right rig for each as fish spend time on or in all of them. I could also find myself fishing another water over the causeway if the main water is crowded with anglers, hence plenty of rigs.