What is your thinking behind that
It sounds like quitre a long hair which I can imagine offers good seperation, however, isn't there the danger of lots of 'single beeps' as the smarter fish simply mouth the bait and avoid the hook?
As i mentioned i use alot of PVA sticks which i slide over the hooklink and down over the hook shank, this hides the hook in a small dusting of stick mix, plus i find the longer hair is harder to deal with from a carp's point of view.
Best thing to do is try it various lengths where you fish and see which ones work, worth investing in a small tank for testing at home with, like the shows.
But don’t put in with your angelfish or you will hook one
And if you put bait with small fish they just round it around the bottom of the tank 3-4 inch fish.