Softer golf balls give worse dispersion!

just re-visiting why balls go left or right.

straight ball has the backspin spinning around the ball's horizontal center axis.

through swing direction/face angle contact at impact for a ball to curve that 'horizontal center axis' gets tilted one ways or another (think of a plane banking to turn one ways or another that's essentially what happens to the ball's axis, it gets tilted so the backspin is now spinning around a tilted axis) so ball flight curves to the left or right.

through the complete range of a manufacturers ball range there's a range of lower to higher spinning balls (backspin) but from lowest to highest encompasses only around 500 rpm's difference.

so say on a handicap players drive that would equate to something around 5 to 10 yards difference in the 'straightness', but only because the ball is spinning marginally faster (with the highest spinning ball type) around the ball's center axis, it's not spinning 'leftfield' or spinning 'rightfield' faster any.

so selecting a low/high spin ball isn't going to help overmuch in straightening out shots as most folks wilder offline shots are a deal more offline than 10 yards first off, & it may well give you even more problems in the short game to contribute to more shots 'lost', that's the area players 'lose' most of their strokes in a game.

lower compression ball will travel a little ways further in 'cold' temps as it has more 'plasticity' out of higher to lower compression balls that have the same core temperature when being used.