Every bit of advice/ experience is of use so thanks briandki. Your observation about the D,ring or Chod rig is absolutely right as the pop up is at an angle to the shank but the question being, can this rig be paired with a floating setup.
The other question, which may seem silly but is of utmost importance to me is, how does a hair rig function. Is the fish hook itself while spitting the hook out or the fish has to move a bit with the hook in its mouth to get hooked. If the second scenario is correct (Which I guess is the case) then the floating feeder becomes redundant as the effective weight of the feeder being zero inside water, due to buoyancy. In case the fish is lifting the bait, there is no weight applied to hook the fish. The only chance of hookup is when the fish is pulling the bait down.
I suspect that is the reason why the hookup percentage is very low in comparison to the amount of feeding happening on the feeder. The best results are when I place the feeder near surface and hence forcing the fish to pull the bait down. But then there must be some method to increase hookups mid water.
I did try feeder setup on the principal of zig rig (A buoyant feeder, anchored to bottom with a three ounce weight) but with very little success.
In a hypothetical situation, If the fish is absolutely still and sucks the hair rig in and then spit it out, will the blow back hook it??
Regards,
Ali.