I have a 905R with a stiff V2, 76gram, 2.2 torque shaft...... when I swing about 80% I hit a nice little draw.....but when I try to step it up abit the ball starts on the correct line but drifts to the right....... being the ball starts on the correct line tells me the swing path is correct.... the ball drifting to the right tells me the club face is open....Ive tried a stronger grip to close up the club face, but it doesnt help..... is my shaft  not quite strong enough?