For those who go and hit golf balls one day a week, hitting a massive amount of golf balls. It would be more beneficial to hit smaller amount of golf balls spread out closer to a daily basis. Basically its better to hit 50 golf balls a day than 350 golf balls all in one day. The reason is, because or nervous system is set up better when we have the least amount of down time between the actions were are training. So you'd probably see better gains, doing lower volume, higher frequency practice than mass volume, low frequency.
So even if you can't hit golf balls during the week, maybe make 50 good golf swings per night with help of a video camera or mirror.