I have been using this hook for several years with 3.8 fatimpact Keitechs and have no problems except small fish biting the tails off.
Head design l am still not sure about? Currently I use the Do It grass jig which is what most others use. I watched a video by Bill Lowan and his opinion is a keeled head is better since it doesn't roll. I fish swim jigs in grass or open water on 12lb line so I guess I will give them a try. .
Allen