Toggle between applications via four finger gesture? Currently, if you enable it, the four finger gesture popups a window that shows you the apps you can switch to, You can then select one of them using the mouse.

Is there any way to modify this gesture a bit to make it faster to use?

I would be fine with either of these implementations:


When you perform the gesture, a right swipe will immediately switch to the next window in the queue, while a left swipe will switch to the previous one. As a result, the queue should not be changed every time you switch windows, otherwise if you keep performing the right gesture, you will just be navigating back and forth between the same two windows.
When the gesture is performed, you see the popup window which displays the open application's icons as you normally do now; but you can keep the fingers down on the trackpad, and move them left or right to highlight a different icon. Once the application you want to switch to is highlighted, you release the trackpad and it switches to that application.
The best way to do this is with one of the more obscure settings in BetterTouchTool
It works like this:
 A three fingered right swipe brings up the application switcher. Lift one finger to covert it into a two finger swipe and slide to whichever application you want.

It becomes an incredible natural and fluid gesture The beauty of the gesture is that it works anywhere on the screen and you don't have to position the mouse over the icons.


In BTT assign the three finger swipe right to the application switcher.
In BTT Action Settings -> Stuff(App Switcher) -> Use special application switcher


This answers the problem that bisko and senseful had above and avoids the last click or the necessity to be over the icon.

Single best gesture in my 'gesture vocabulary' and I have gestures for everything!