If you put the pin 1" from center of grip you will reduce the flare and the overall reaction. If you want to do a full roller drilling that has no flare at all and just rolls, place the cg in the center of grip and put the pin in the track. This would have the pin in the 4:30 position for a right hander and in the 7:30 position for a left hander. This info supplied by a former full roller (40 yrs.)