Speaking of MS and RTS-M:
Before the patch each "mishit variable" (swing plane, ratio, heel/toe) seemed to have an equally weighted effect on the applied penalty. An outside/in swing plane of 1 resulted in a little fade. A toe hit of 7 resulted in a little fade. It wasn't a big effect but it could be seen clearly. A 0.26 ratio pushed the ball to the right but there wasn't much spin effect to the right when the two other variables were on the money.
After the patch the ratio seems to clearly dominate the left/right penalty. If you hit it with a 0.25 ratio and 1 outside/in there is almost no "fade movement" on the ball. And the heel/toe mishits seems to have almost no impact on the ballflight (sidespin). The ratio on the other hand is brutally unforgiving. Hit driver with perfect swing plane, 0 heel/toe and a 0.24 ratio the ball goes a good amount to the left.
Before the patch you were rewarded if you've got two of the three mishit variables right. Right now the ratio dominates almost the whole ballflight. And it has an effect on the workability of the ball as well. Before the patch you could play draws and fades with a rather gentle variation of the swing plane - now you have to alter your swing plane a lot to make the ball curve. And it kind of limits the variation of ball flights.
I liked the former formula of mishits way better. The devs tried to make MS and RTS-M harder, which was absolutely okay. But i would find it better if we could use the old formula and make all mishits variables a little bit harder proportionally. Not ratio penalty way more severe and the two others way less severe.