I agree with every one of the pro-running set up posters for all the reasons They've mentioned .
I try to use as light a lead as possible usually 1.5 Oz or lighter
I see what Philip means by needing a heavier lead to keep the lead still on the take but I would just like to say that , on the take , a light lead bumps along the lake bed to a degree , helping with the hooking process and negating the need to actually physically strike .
It's something I picked up on from reading Moorsey's posts on here from a few years back , he's a strong believer in Running set ups with slack lines and , Gagna , you could do a lot worse than search some of his posts on here mate .
Imo Keith Moors = top angler . I could be wrong but I even recall him posting about confidentially using running rigs in weed .
I shall be searching for that one myself now lol