Lead hand grip???

[golfquest]

Question for Yoda or YodasLuke. I definitely trying to develop hitter stroke, because of no flexability. (usually lose it when one becomes shall we say 'wisdom overcomes youth'.) I realize the lead thumb should be aft of the shaft and the trail hand facing the target pressing on the lead thumb. However, the question is about the lead hand. Should the back of the lead hand be facing target wise, facing the sky (top of the shaft) or somewhere in between. Please don't quote the little yellow book on me at the moment, for only the grandkids know where it might be, but so far no luck. Thank you for your time. Stan