I dont see how luck is really that powerful of a force at the top level of 9-ball in regards to fluked balls. Calling the pocket would hardly change the game at the pro level because how often do they really miss such that the ball goes into another pocket or makes another ball? This would instead hurt those people kicking out of tough safties 3 rails that manage to pocket a ball, it is hard enough to hit the ball but now you want them to call the outcome and if they dont call a return safety or the potted ball after the contact they are penalized?
Regardless, the extreme domination that one pro can have over another in 9-ball has nothing to do with luck, it has to do with the game being too easy and the fact that a pro if he is breaking well can run out rack after rack and play dead perfect safeties to totally control a match from the lag. You can make them call their pots and safeties all you want, most of the time they are making exactly what they set out to do anyway and them vocalizing their intent is not going to change a thing. I have numerous 9-ball accustats where matches are completely controlled by a single player without the other ever having a hope and the problem is NOT luck, the winning player is intending to do everything they are doing.
9-ball is a game flawed at the core. The UPA would do well to realize this. Fiddling with the rules will not fix the problems over the long haul.
If they are so intent on playing rotation pool then I really think they need to look at a single point per a ball 15 ball rotation game where the first player to 75 points or so wins. Winner of the lag breaks, anything that goes they keep, then they play rotation pool, hitting the lowest ball on the table first and anything they make after that is a point, they shoot till they miss, person who sinks the last ball breaks the incomming rack. It is really simple and merges the best parts of straight pool and 9-ball all into one.
That or 10-ball which changes the game quite alot due to the far more difficult to master break.
Anything less then using a new game on the UPA tour is simply spinning your wheels. Eventually 9-ball will cease being the professional game, why keep whipping a dying horse attempting to get that last mile out of it when you know it is going to leave you stranded in the middle of nowhere?