I've worked hard to use just a gravity swing, I am older so shoulder problems eliminate high backswing, hence slower speeds which in turn cause more backend problems when lanes transition. Thing is though, if you can keep your speed consistent, adjustments are a lot easier to spot and correct and when lanes are clean and you're lined up, you can string with the best.
Todays stronger covers begs for speed but you do what you can do, comfort zone for you is what counts for accuracy and enjoyment.