Quoted from awesome1:In all seriousness... I have noticed improvements on the games I use them on. I do tend to play long periods of time (1-3 hours usually) sometimes back to back to back on the same machine. If you are playing a game and moving on to another machine, you probably won't notice anything unless your games are long (30+ minutes from start of cold machine). It also may be a little difficult to "feel" flipper fade in a lot of cases, because the game still works, just the flipper timing is altered slightly.
Exactly this.
I've installed them on both GZ and AIQ. I can notice fade from as little as half an hour play, often on the very first game from turning on.
A lot of people won't notice the fade and just think that they've mistimed the shot - and only start to notice it when they can't make a ramp. I'm confident that I'm a good enough player to be able to know whether I've hit the shot in the same place/time as previous shots and know when there's a deteriation in the flipper strength.
They've been a godsend on both the machines I've fitted them on, but haven't needed them on any other games I've owned.
As it happens was at a league meet just yesterday and after 4 hours of play, GZ was having a real struggle in making the right ramp, not ideal as a rejection often led to a SDTM.
I do wonder if using a more powerful coil, on a lower setting would improve the fade, but no doubt people would still turn the power up to max and have the ball flying around so fast that airballs and broken plastics would be an issue.