Just to clarify, I am not espousing playing like a boring pusher. I get that. I am really just harping on being more consistent. Trust me, I hit plenty of hard winners, slams at the net, aces, etc. I ALSO reduced my unforced errors as well.
No one one that court walked off saying I was some wimp. I probably hit harder than all of them (except the serve, but my first serve % blew everyone's away, so I had the most service winners, by far) I was just more selective about when I went all out. Big difference!