I Think I Have Got It!
Some might recall the plastic prongs Joe Tucker has that snap onto a cue tip to see if you are hitting center ball. Worthless for that in my case, I'm not hitting that far off center ball. However keep the two prongs in front of the cue tip in mind, that is what is important.
Ideally they could be made out of of a superstrong clear plastic but failing that 7075t6 aluminum would work. The gadget would still go over the end of the cue stick but now it would reach to center ball of the cue ball and each prong would be adjustable. Now the device would slide onto the cue ball at the same time as tip contact. Since the cue shaft and the cue ball are both restrained from sideways movement the forces would have to cancel out, the cue ball leaves directly on the target line.
I figure I need about a half million to perfect this device and make the first production run. One question remains, should I go with Kickstarter or GoFundMe? OK, one other question: Who wants in? Stock shares plus a unit from the first production run. When the company goes public we can all retire!(all of us that are retired now anyway)
Hu