Yeah you're right. I use the Pro clubset. Didn't score very well with the Master clubs but will give them another try. That's said I play the PC version with MS so the scores there might be a bit more different in general.
Has someone a direct comparison between MS and controller on PC? Would it be worth to purchase a controller?
I don't have a setup in my rec room that lends itself to mouse control... I don't have a desk or table top in the room that would fit into the environment needed for proper mouse control. I tried the original TGC with the mouse swing once on a temporary setup I had, and I honestly thought it was awful. I've heard that the latest patch has made the mouse swing as good as it's ever been, but there are still some who are complaining about how it 'broke' the game.
I wish I could offer some comparative advice for you between the mouse and controller in TGC 2019, but I have no frame of reference. I do know that the controller works well for me in the PC version, but I've been controller swinging exclusively in golf games since 2007.