I only use running rigs forall my fishing ! small leads of less than one ounce. 14lbs main line with 30lbs end braid on a size 6 or 8 hook ! no armoured line (end) unless its for cats or sturgeon.
Keep it as simple as possible is my motto !
Line tends to be fluro unless i want to fish on teh surface. with either a pop up or bread /dog biscuit.
fishing close in does not need heavy leads and any distance of up to 30 metres the light lead is ok. when useing a pop up . i tend to use a halved one on a 14/16mm boilie ,so the halved popup just lifts the boilie off the ground and no more.. i would use putty if was useing just the pop up on its own. But in this case would use a 20mm pop up but cut in a square rather than keep it round.