I tried the ultra speed boost (somehow got it free, and it still shows up on my page). Makes the game seem funny, as immediately after hitting it, the ball is where it would have landed/stopped. I tried it on the Super Insane Fast tourney, and it's super insanely funny on putts. Too confusing for me, even though it doesn't really affect anything, I assume. Here's a 2.5ft putt on those insane greens: