If it impacts on your pool for 48 hours, you are probably doing too much. I play in tournaments twice a week in the evening after weight training in the morning. I'm also 57Y/O.Pool is like your wife finding about about your affair with Lifting.
Heavy dumbell presses, flyes, tricep push downs, curls, & deadlifts negatively impact pool for at least 48 hours.
Is anybody else involved in this love triangle?
I do find it funny that I have a love for activities that will never make me a millionaire like baseball, football or basketball.
I've spent countless hours playing pool, working out competitively, playing softball and skiing.
Perhaps Donnie Mills will weigh in here (pun intended). I remember hearing him talk about this before. He said if anything he thought lifting *helped* his pool game, giving him better physical form and better physical endurance. Your brain feeds off the energy produced by your body...better body provides the conditions for the brain to produce a better mind. Perhaps it depends on how hardcore you are lifting and when.
KMRUNOUT
I'm an avid weight lifter- been doing so for the past 20 years or so. It can only positively impact your pool game.
There appears to be consensus on the positive contribution of lifting & other conditioning exercises on pool-long term.
The disagreement appears to be on whether or not heavy work sets &/or multiple high rep sets to failure hours or a day before playing might negatively impact your performance.